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Subject
Mechanical Engineering
Date
Feb 20, 2024
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160
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Unit:
AURETR143 Diagnose and repair electronic body management systems
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Student Assessment - Theory v1.1.docx
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Student Assessment - Theory v1.1.docx
Course Code
AUR30620
Course Name
Certificate III in Light Vehicle
Mechanical Technology
Unit Code
AURETR143
Unit Name
Diagnose and repair electronic body
management systems
Due Date:
05/04/2022
Assessment Name
Automotive Portfolio
Part A: Short answer questions
Student No
.
________________
Student Name
_____________________________
Student Phone
________________
Student Email
_____________________________
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from
my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information
will operate in the same way as physically signing this cover sheet.
Student name or signature:
___________________________________________
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will
operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print
their name in signature box
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Course Code and Name:
AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR143
Unit Title:
Diagnose and repair electronic body management systems
For this assessment you are required to answer all of the questions. You are permitted to research
the answers by reading the learner guide, text books, theory notes and accessing the internet. If
more room is needed label each task with the question number and use headings or dot points to
make your work clear for your trainer and assessor.
Please follow the
Referencing Guide
contained on your Course handbook.
Please attach a
student assessment cover sheet
to each unit submission. You must complete the
cover sheet in full detail.
1.
Where can you find the information listed in the table below?
Item
Location
Give three (3) examples
Content
Give three (3) examples
Workplace procedures related
to diagnosis and repair of
electronic body management
systems?
●
Job card
●
Wiring diagram
●
Service checklist
●
Wiring diagrams
●
Safety procedures
●
PPE required
Manufacturer specifications
related to diagnosis and repair
of electronic body
management systems?
●
Manufacturer's Website
●
Car manual
●
Internet
●
Voltage
●
Parts needed
●
Testing procedures
2.
What methods do you use to locate information from the customer regarding the diagnosis and
repair of electronic body management systems?
Job card and service checklist
3.
List three (3) methods you can use to locate the required information to diagnose and repair the
network electronic control systems.
1.
Job card
2.
Manufacturer's Website
3.
Car manual
4.
Explain the workplace procedures in the table below required to diagnose and repair electronic
body management systems? Listed in the table below.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Establish serviceability of
tools and equipment
•
Don’t use the wrong tool, or by using the right tool in the
wrong way
•
Never try to modify or improvise if you don't have the right
tool or equipment.
•
Choosing the correct tool will also decrease the effort
required without causing damage to either the equipment or
the surface being worked on.
Documentation procedures
Record keeping documents what you’re doing to maintain and
improve your working environment and health and safety.
Keeping records can help you track your business' health and
safety performance, as well as satisfy the legal requirements.
5.
Describe the housekeeping procedures required when diagnosing and repairing electronic body
management systems? Listed in the table below.
Tools and equipment
procedures
Put them back as soon as you are finished with them, make sure
when using lifts, use the one with the right ratings
Storage and examination of
equipment procedures
Return tools to the toolbox when done. Keep batteries in bounded
areas, label tools and equipments
Identification, tagging and
isolation of faulty equipment
procedures
Tag all broken equipment/tool and turn over to shop manager
Safe disposal of excess
material procedures
Dispose all oil in an oil tube, in a bunded area. Petrol should never
be mixtured to oil.
Recycling procedures
Oil should always be stored in a bounded area to be later on
recycled. Never mix it with coolant or fuel.
6.
Describe the Workplace Health and Safety requirements relating to diagnosing and repairing the
electronic body management systems, including procedures for working with high current wiring
systems, listed in the table below.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Using specialised tools
and equipment
Always use the adequate tool to perform the job. Using the right tool
will not only make the job easier but also reduce risks of injuries and
accidents
Using appropriate
personal protective
equipment (PPE)
Using the right PPE can drastically decrease the severity of accidents,
rubber insulated gloves, safety glasses, safety boots are the b
Identifying hazards and
controlling risks
associated with wearing
jewellery while working
around high current
wiring systems.
Identified Hazards
List two (2)
Associated Risk
List four (4)
●
High voltage hazards
●
Burn hazards
●
Burns
●
Shocks
●
Fire
●
Explosions
7.
Describe the Workplace Health and Safety requirements relating to diagnosing and repairing the
electronic body management systems, including procedures for disarming vehicle airbag and
safety restraint systems, in the table below.
Disarming of airbag
The safest way to start is by disconnecting both battery terminals,
covering and securing them after. Always disconnect the airbag
control unit earth connection before attempting any repairs on the
system.
Airbag construction
In the airbag system we have the airbag module, which has the
inflator, crash sensors, diagnostic monitoring unit, indicator lamp and
a steering wheel connecting coil
Safe testing
Check for airbag warning light. If it flashes or doesn’t go off after the
engine starts, there’s a problem with the airbag system
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Safe deployment
Deployment of airbags is only performed by approved facilities, they
cannot be deployed by workshop technicians
Safe disposal
When an airbag is deployed, sodium azide is converted into harmless
nitrogen gas by other chemicals in the inflator. In fact, a fully
deployed airbag can simply be handled as solid waste and disposed
of in the garbage
.
8.
Describe the operating principles of electronic body management systems and associated
components including types of electronic body management systems.
Operating Principles:
Engine Management System. It consists of a wide range of
electronic and electrical components such as sensors, relays,
actuators, and an Engine Control Unit.
Associated Components:
List eight (8)
1.
Battery sensor
2.
Body Computer
3.
Modules
4.
Body Control Unit
5.
Combi systems
6.
DC/DC Converter
7.
Vehicle Security System
8.
Radio
9.
Describe the purpose and operations of electronic body management systems and
components
listed in the table below.
Entry and exit systems
This system controls all functions related to getting in and out of a
vehicle
Power door locks
Devices that after receiving the signal from the BCM will unlock/lock
the car
Key coding to vehicles
Transponders send a specific code to the BCM so i can match with the
appropriate key code, once matching the code, the car is unlocked.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Anti-theft immobilisation
circuits
Anti-theft immobilisation circuits prevent the car from being stolen
by only starting it with the correct key
Power window systems
Power window systems operate the windows through a signal
emitted from the BCM. Everything happens with wires and electricity,
the opposite of the manual handles of the older models
Lighting systems
The lighting system of a motor vehicle consists of lighting and
signalling devices mounted at the front, rear and sides
Navigation systems
A car's navigation system uses GPS to detect the current location of
the vehicle via satellite
Infotainment systems
Infotainment is the mix of Information and entertainment, features
like bluetooth, radio, CD player, rear camera are part of the
infotainment system
Passenger comfort
systems
They are in charge of keeping your air clean, cooling your car down
on a hot day, and keeping your car going at a single speed using
Cruise Control.
10.
Describe the testing procedures for vehicle electronic body management systems including
accessing and interpreting the scan tool system data listed in the table below.
Diagnostic trouble codes
(DTC)
There are a couple of ways to eraso codes, first one is through the
scanner tool, such as a OBD2 reader for cars manufactured after
1996.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Waveforms
A waveform is a representation of how alternating current (AC) varies
with time. The most familiar AC waveform is the sine wave,
Live Data
By using live data you can determine the possible causes to
the problem using real time information
11.
Describe the testing procedure for vehicle electronic body management systems using flow
charts in five (5) steps.
1.
`Find the information needed about the problem
2.
Test drive
3.
Gather more information on the problem to highlight the possible problems
4.
Find the actual problem by testing all possibilities
5.
Begin to repair the problem, then test it again to evaluate the job done
12.
Describe the testing procedures listed in the table below.
Accessing electrical
terminals and using
probes without
damaging connectors,
fuse holders or wiring.
Using the probes of the multimeter connect the tester clip to the
negative terminal of the battery. Use then probe to check for
continuity
Resistance and voltage
drop tests.
Voltage drop tests are used to find components or circuits
which have excessive resistance. The VOM's positive lead
should be connected to the circuit in the direction of the
power source and negative lead toward the ground.
Open and short circuits
tests
The open circuit and short circuit test are performed for determining
the parameter of the transformer like their efficiency, voltage
regulation, circuit constant etc. These tests are performed without the
actual loading and because of this reason the very less power is
required for the test.
Shorts to signal, power
circuits and grounds
checks
Remove the power feed from the circuit. Disconnect the load.
Connect one lead of the metre to one end of the circuit to be tested.
Connect the other lead of the metre to a good ground.If it does not
display infinite resistance, there is a short to ground in the circuit. Any
relatively low resistance reading on the metre is a sign of continuity to
ground and a short circuit.
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13.
Describe the repair procedures for electronic body management systems, including procedures
for removing and replacing components listed in the table below
Repair procedure for
electronic management
systems
List six (6) steps.
1 Search for one of the most common troubles in
power seats: inspect the seat rails and the area under
the seat with a flashlight and make sure there are no
objects obstructing or preventing seat movement.
2 Inspect the fuse or circuit breaker if both front
power
seats fail to operate.
3 Turn on the ignition switch, but do not start the
engine. Operate the power seat switch and listen
for the motor running under the failed seat. If you
do not hear any sound coming from the motor, lift
the switch from the door panel or the side of the
seat.
4 Check for incoming voltage at the switch using a
test light. If there is no voltage, check the wiring
between the switch and the fuse panel for an open
or short. Unplug the switch and test it for
continuity using a multimeter. If there is no
continuity, replace the switch.
5 Test the relay if your circuit has one between the
switch and the failed motor. Operate the switch and
make sure the relay is receiving voltage from the
switch; also, test for outgoing voltage from the
relay to the motor using a test light. Make sure the
relay is properly grounded. Remove or move the
seat to the side if possible, for this test. If one of
the voltages is not present, check that part of the
wire for an open or short. If there is no outgoing
voltage, test the relay for proper operation and
replace it if necessary.
6 Check for incoming voltage at the failed motor or
motors using a test light. If there is no incoming
voltage, test the wire or wires for continuity between
the motor and switch or relay, looking for an open or
a short. Unplug the failed motor and test it outside,
connecting the motor to the car battery using two
jumper wires. If the motor still does not operate,
replace it.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Procedure for removing and
replacing faulty or damaged
components
List five (5) steps.
1 Locate the window switch panel. This is the button
used to operate your window. It is almost always on
the door. However, they are rarely found on the
centre console.
2. Remove the window switch panel. Be careful not
to scratch up the door panel while removing the
window switch, as it often requires prying. Using a
shop rag or piece of cardboard under your prying
tool can help.
3. Unplug the wiring connectors from the switch. You
will need to test these connectors to make sure that
they are providing the appropriate 12 volts to your
switch.
4. Use your multi-meter to probe each connector.
Set the multi-meter for D/C volts and put the
prongs of your multi-meter into the connector. It
should read 12 volts.
5. Test another switch. Take a switch from another door
and plug it into the connectors on the malfunctioning
door. If you are able to operate your window using this
switch, then the original is bad and will need to be
replaced. .
14.
Describe the post repair procedures for electronic body management systems listed below.
DTC clearing procedure
A DTC code is a series of diagnostic trouble codes used by a
vehicle's onboard diagnostics or OBD system to alert you when a
vehicle experiences a malfunction. There are a couple of ways to
eraso codes, the first one is through.
Static and dynamic
performance tests of
electronic body
management systems
Test all operations that come from the module while the car is not
moving (static). Then proceed to re-test all operations again while
driving the vehicle, then finally check for any DTC codes.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Course Code
AUR30620
Course Name
Certificate III in Light Vehicle
Mechanical Technology
Unit Code
AURETR143
Unit Name
Diagnose and repair electronic body
management systems
Due Date
0
5/04/22
Assessment Name
Automotive Portfolio
Part B: Practical Assessment
Student No
.
________________
Student Name
_____________________________
Student Phone
________________
Student Email
_____________________________
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from
my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information
will operate in the same way as physically signing this cover sheet.
Student name or signature:
___________________________________________
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
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Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will
operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print
their name in signature box
Course Code and Name:
AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR143
Unit Title:
Diagnose and repair electronic body management systems
You are working in an automotive workshop. Two (2) clients have brought in two (2) different
vehicles that require diagnosis and repairs to the electronic body management systems.
Your task is to diagnose and repair the faults in the different electronic body management systems.
You must also carry out diagnostic testing in the course of the above.
Your assessor will be acting as your supervisor and delegate work to you.
The work will be delegated to you as per the activities listed in this assessment ask. The description
of the activities are mentioned below.
The role of the supervisor (trainer/assessor) is to allocate the tasks, activities and responsibilities you
will be required to undertake to complete these assessments. Your trainer/assessor will also observe
you when you are completing the activities and evaluate your performance based on benchmarking
in the performance checklists.
You are required to diagnose and repair a fault in the electronic management system of two (2)
vehicles, vessels or machinery, in which the work must involve different faults.
Activity 1
– Diagnose and repair a fault in the electronic body management system.
Activity 2
– Diagnose and repair a fault in a dfferent electronic body management system
You must carry out a diagnostic test in the course of the above work for at least one of the following
faults:
●
High resistance in an input system or
●
Damaged connectors or wiring or
●
Shorted or worn system components.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Your supervisor will advise you which diagnostic test you will complete.
After each activity, you will find a Performance Checklist. The list outlines the tasks you need to
perform, and your supervisor (your assessor) will observe. These assessment tasks are given to you
as repair orders.
You need to:
●
Determine the job requirements according to your customer and or supervisor’s instructions
●
Access and interpret the technical procedures and information for the diagnosis
●
Analyse the diagnostic options and source a testing strategy
●
Identify hazards and environmental issues associated with the work and manage risks.
●
Select and check tools, equipment, and materials for serviceability.
●
Implement the diagnostic testing
●
Analyse the test results to identify the cause of fault
●
Confirm and report the fault
●
Develop and report recommendations for repairs
●
Identify information for the repair
●
Select and check the tools for the repair activity
●
Carry out and complete the repair work
●
Make final inspection to ensure work is to workplace expectations and present systems
ready for use.
●
Clear the work area, dispose of waste and non-recyclable materials, and collect recycled
material.
●
Process workplace documentation according to workplace procedures
You need to read the supervisor’s instruction on the repair order underneath, discuss the tasks listed
with your supervisor for clarification and fill the vehicle’s details and other information on top of the
repair order before starting the work.
You must also fill out the following documents:
●
The Testing Strategy template to outline your testing strategy
●
The Preliminary Inspection Report to record the outcomes of your testing.
●
The Post-Repair Testing template to confirm the status of the suspension systems,
●
Finalise the information on the Repair Order.
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
Student Assessment - Theory v1.1.docx
Activity 1 –
Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name:
ABCD Motors
Repair Order 1
Address:
22 Spring Grove Sunshine
Date:
Phone:
7125 2356
ABN#:
923 556 412
Technician’s Name:
Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Contact number: 1234343
Customer’s declaration: By signing this repair
order, I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost.
Signature:
Vehicle details
Make:
Model:
Year:
Colour:
I.D. Number #:
Vehicle Chassis #:
ODO/Millage:
Concern:
Cause:
Recommendation:
Rectification/Repair:
Parts used (if any) and quantity:
Testing Strategy Template
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Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
Source (s) of Diagnostic process
Preliminary Inspection Report
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Student Assessment - Theory v1.1.docx
Date: Time:
Vehicle Identification number: Odometer reading:
Last service date:
Preliminary inspection conducted by:
Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
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Student Assessment - Theory v1.1.docx
Post-Repair Testing Date:
Vehicle Identification Number:
Odometer reading:
Vehicle owner’s name and address:
Fred Barley
Ashmore Gold Coast
Technician name:
Tech number:
Problem reported:
Action taken:
Visual inspection comments:
Type of post-service testing carried out:
Remarks/Comments
Final inspection carried out vehicle presented ready for use:
YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date:
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Your Assessor will observe you and complete the following checklist. All task criteria must be
satisfactorily demonstrated.
Practical Observation Checklist
Your task must address the following performance checklist.
To be assessed as satisfactory (S) in this
assessment task the participant needs
to
demonstrate
competency
in
the
following critical aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
P
r
e
p
a
r
e
t
o
d
i
a
g
n
o
s
e
a
n
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e
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a
i
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e
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e
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i
c
Job requirements were
determined according to
workplace instructions
❑ ❑
Clarify instructions
❑ ❑
Obtain information from
customers and supervisors
❑ ❑
Analyse diagnostic options and
source testing strategy to
identify cause of fault using
workplace and manufacturer
procedures.
❑ ❑
Accessed technical information
required and interpreted it for
diagnosis and repair.
❑ ❑
Develop a sequenced plan for
the task
❑ ❑
Accessed safe operating
procedures required and
interpreted them for
equipment.
❑ ❑
Identified any hazards
associated with the work
❑ ❑
Identified hazards and managed
the risks
❑ ❑
Follow procedures for using
specialised tools and equipment
❑ ❑
Use appropriate personal
protective equipment (PPE)
❑ ❑
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Student Assessment - Theory v1.1.docx
l
e
i
g
n
i
t
i
o
n
s
y
s
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e
m
s
Identify tools and equipment
required for testing strategy and
establish serviceability
❑ ❑
D
i
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n
o
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a
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d
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e
p
a
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t
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e
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i
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e
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g
n
Inspect damage to the vehicles
ignition systems
❑ ❑
Plan own work requirements
❑ ❑
Correctly use specialised
diagnostic equipment
❑ ❑
Appropriately use tools and
fault-finding techniques for
testing the systems according to
workplace procedures and
safety and environmental
requirements, and without
causing damage to components
or systems
❑ ❑
Compare inspection and test
results with manufacturer
specifications
❑ ❑
Identify faults from test results
and causes of faults are
determined
❑ ❑
Follow workplace procedures
with regards to confirmation
and reporting
❑ ❑
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Student Assessment - Theory v1.1.docx
i
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Labelling of components before
removal
❑ ❑
Removal of components
according to manufacturer
specifications, workplace
procedures and safety
requirements, and without
causing damage to components
or systems
❑ ❑
Securing pipes and hoses to
remove risk of contamination
❑ ❑
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Access and interpret scan data
from manufacturer and
component supplier
specifications
❑ ❑
Use appropriate techniques for
conducting test and evaluation
tasks according to workplace
procedures
❑ ❑
The refitting of tested
components and reconnection
according to manufacturer and
component supplier
specifications
❑ ❑
Carry out post-repair testing
according to workplace
procedures to confirm fault, and
how to rectify any further
problems detected as having
been introduced during the
repair or fabrication process
❑ ❑
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Final inspection is made to
ensure work completed is to
expectation and the vehicle
ignition systems is presented to
the customer ready for use
❑ ❑
Cleaning the work area including
disposal of waste and
non-recyclable materials, and
recycling of other materials
❑ ❑
Check and store tools and
equipment
❑ ❑
How any faulty equipment is
identified, tagged and isolated
❑ ❑
What workplace documentation
needs to be processed
❑ ❑
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Final inspection is conducted
and the vehicle is presented to
the customer ready for use
❑ ❑
Process of cleaning the work
area including disposal of waste
and non-recyclable materials,
and recycling of other materials.
❑ ❑
Checking and storing tools and
equipment.
❑ ❑
Remove tools used
❑ ❑
Remove waste
❑ ❑
Sort and remove recyclables and
non-recyclables
❑ ❑
Workplace documentation
needs to be processed
❑ ❑
Legibly complete all templates
❑ ❑
Complete all documentation
required
❑ ❑
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Activity 2 –
Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name:
ABCD Motors
Repair Order 2
Address:
22 Spring Grove Sunshine
Date:
Phone:
7125 2356
ABN#:
923 556 412
Technician’s Name:
Technician’ signature:
Customer’s details
Full name:
Fred Barley
Address:
Ashmore Gold Coast
Contact number:
1234343
Customer’s declaration: By signing this repair
order, I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost.
Signature:
Vehicle details
Make:
Model:
Year:
Colour:
I.D. Number #:
Vehicle Chassis #:
ODO/Millage:
Concern:
Cause:
Recommendation:
Rectification/Repair:
Parts used (if any) and quantity:
Testing Strategy Template
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Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
Source (s) of Diagnostic process
Preliminary Inspection Report
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Date: Time:
Vehicle Identification number: Odometer reading:
Last service date:
Preliminary inspection conducted by:
Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
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Post-Repair Testing Date:
Vehicle Registration:
Odometer reading:
Vehicle owner’s name and address:
Fred Barley
Ashmore Gold Coast
Technician name:
Tech number:
Problem reported:
Action taken:
Visual inspection comments:
Type of post-service testing carried out:
Remarks/Comments
Final inspection carried out vehicle presented ready for use:
YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date:
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Your Assessor will observe you and complete the following checklist. All task criteria must be
satisfactorily demonstrated.
Practical Observation Checklist
Your task must address the following performance checklist.
To be assessed as satisfactory (S) in this
assessment task the participant needs
to
demonstrate
competency
in
the
following critical aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
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Job requirements were
determined according to
workplace instructions
❑ ❑
Clarify instructions
❑ ❑
Obtain information from
customers and supervisors
❑ ❑
Analyse diagnostic options and
source testing strategy to
identify cause of fault using
workplace and manufacturer
procedures.
❑ ❑
Accessed technical information
required and interpreted it for
diagnosis and repair.
❑ ❑
Develop a sequenced plan for
the task
❑ ❑
Accessed safe operating
procedures required and
interpreted them for
equipment.
❑ ❑
Identified any hazards
associated with the work
❑ ❑
Identified hazards and managed
the risks
❑ ❑
Follow procedures for using
specialised tools and equipment
❑ ❑
Use appropriate personal
protective equipment (PPE)
❑ ❑
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Identify tools and equipment
required for testing strategy and
establish serviceability
❑ ❑
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Inspect damage to the vehicles
ignition systems
❑ ❑
Plan own work requirements
❑ ❑
Correctly use specialised
diagnostic equipment
❑ ❑
Appropriately use tools and
fault-finding techniques for
testing the systems according to
workplace procedures and
safety and environmental
requirements, and without
causing damage to components
or systems
❑ ❑
Compare inspection and test
results with manufacturer
specifications
❑ ❑
Identify faults from test results
and causes of faults are
determined
❑ ❑
Follow workplace procedures
with regards to confirmation
and reporting
❑ ❑
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Labelling of components before
removal
❑ ❑
Removal of components
according to manufacturer
specifications, workplace
procedures and safety
requirements, and without
causing damage to components
or systems
❑ ❑
Securing pipes and hoses to
remove risk of contamination
❑ ❑
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I
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Access and interpret scan data
from manufacturer and
component supplier
specifications
❑ ❑
Use appropriate techniques for
conducting test and evaluation
tasks according to workplace
procedures
❑ ❑
The refitting of tested
components and reconnection
according to manufacturer and
component supplier
specifications
❑ ❑
Carry out post-repair testing
according to workplace
procedures to confirm fault, and
how to rectify any further
problems detected as having
been introduced during the
repair or fabrication process
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR143 \STUDENT ASSESSMENT GUIDE\AURETR143
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Final inspection is made to
ensure work completed is to
expectation and the vehicle
ignition systems is presented to
the customer ready for use
❑ ❑
Cleaning the work area including
disposal of waste and
non-recyclable materials, and
recycling of other materials
❑ ❑
Check and store tools and
equipment
❑ ❑
How any faulty equipment is
identified, tagged and isolated
❑ ❑
What workplace documentation
needs to be processed
❑ ❑
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Final inspection is conducted
and the vehicle is presented to
the customer ready for use
❑ ❑
Process of cleaning the work
area including disposal of waste
and non-recyclable materials,
and recycling of other materials.
❑ ❑
Checking and storing tools and
equipment.
❑ ❑
Remove tools used
❑ ❑
Remove waste
❑ ❑
Sort and remove recyclables and
non-recyclables
❑ ❑
Workplace documentation
needs to be processed
❑ ❑
Legibly complete all templates
❑ ❑
Complete all documentation
required
❑ ❑
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Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR131
Unit Name
Diagnose and repair ignition systems
Due Date
Assessment Name
Automotive Portfolio
Part A: Short answer questions
Student No
.
____3002218_____
Student Name
_______ANDAC IBIS____________
Student Phone
____0451061907__
Student Email
____andacibis94@hotmail.com___
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: ___________________________________________
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
/var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
Imagine Education
Student Assessment Cover Sheet
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Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR131 Unit Title: Diagnose and repair ignition systems
For this assessment you are required to answer all of the questions. You are permitted to research the answers by reading the learner guide, text books, theory notes and accessing the internet. If more room is needed label each task with the question number and use headings or dot points to make your work clear for your trainer and assessor. Please follow the Referencing Guide
contained on your Course handbook. Please attach a student assessment cover sheet
to each unit submission. You must complete the cover sheet in full detail.
1.
Where can you find the information required in the table below? Item
Location
Three (3) examples
Content
Three (3) examples
Workplace procedures and safety data sheets related to diagnose and repair ignition system.
Workshop manual
Manufacturer`s website
Manager`s office
Safe working procedures
Emergency procedures
Hazard control procedures
Starter system manufacturer
specifications
related
to
diagnose and repairing ignition
system
Manufacturer`s website
Repair manual
Google
System diagnostic procedures
Repair instructions
Installation procedures
2.
What methods do you use to locate and interpret information from customers and supervisors to
be able to diagnose and repair an ignition system? List three (3) examples
Talk to the supervisor or manager
Job card
Asking to the customer or referring to any customer correspondence
3.
Explain the workplace procedures required to diagnose and repair ignition systems in the table below. Answer using 10-30 words for each.
Establish serviceability of tools and equipment.
All tools and equipment should follow due dates and serviceability. We must examine them visually and physically before carrying out work procedures. Regularly checking and cleaning tools and equipment.
Documentation procedures
Document the procedure performed on the system before and after a service or a diagnosis. All documentation procedures should be /var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
Imagine Education
Assessment Questions
Part A
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carried out within the administration office such as; Job cards, Diagnosis reports, Safety procedures, Customer details etc. 4.
Describe the housekeeping procedures required to diagnose and repair ignition systems. Answer using 10 to 30 words for each.
Tools and equipment procedures and examination
Regularly checking and inspecting tools and equipment for any cracks, damages on tools before work procedures and to make sure all tools or equipment are in a good working condition to prevent risk or accidents. Storage of equipment procedures
Tools and equipment must be stored back in the designated place. Clean the dirt or oils on it with a rag after completion of the task. Never leave the tools on the workshop floor. Identification, tagging and isolation of faulty equipment procedures
Inspect the tools and equipment for physical damages or any fault. Unserviceable equipment should be tagged and reported to supervisor faults identified in accordance with workplace procedures. Safe disposal of excess material procedures
Keeping a clean work area and disposing of excess materials according to workplace procedure. Dispose all oil in an oil tube and keep them in a bunded area. All waste material should be stored in a proper legal bin or area for the licensed person for proper disposal. Recycling procedures
All waste material should be sorted out and stored in plastic bags or containers labelled to make it easier for the licensed or authorised person for proper recycling procedures. 5.
Describe the workplace health and safety requirements relating to diagnosing and repairing of ignition systems. Write your answers in the table below.
Situation
WHS requirements and procedures
Using specialised tools and
equipment, including.
Multimeters
Scan tools
Oscilloscope
Answer using 30 to 50
words.
•Specialised equipment must only be used for its specific purpose.
•Always refer to the manufacturers operational instructions before applying them to a testing procedure
•Ensure all specialised equipment is calibrated and any firmware is up to date.
•Always follow the diagnostic flow charts when using the equipment to diagnose systems.
Using appropriate personal
protective equipment (PPE)
Answer using 30 to 50
words.
• Safety glasses, to protect any damage to the eyes. • Safety boots; to protect from any damage to the foot. • Safety rubber gloves; to avoid contract with hot fluids or high current shocks. • Workshop uniforms, to avoid any contract with hot and toxic fluids
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or fire sparks. • Face shield or mask; to protect from splashes.
Working with high voltage
ignition systems
Write your answer using 50
to 100 words.
Must ensure that proper personal protective equipment is used before starting to work with high voltage ignition systems. If necessary, do not touch any high voltage lines and components if the job is not related to it. In the instance high voltage lines and components must be checked, switch off the vehicle and remove lines that connect to the vehicles battery.
Wearing jewellery while
working
around
high
current wiring systems
Write your answer using 40
to 60 words.
If wearing jewelleries, it must be hidden underneath the proper work uniform. Must ensure that it is not hanging around or exposed when working with high voltage systems because it is a conductor of
electricity. As much as possible, remove all jewelleries that is attached to the body.
6.
Describe the environmental requirements relating to diagnosing and repairing ignition systems. Write your answers in the table below.
Disposing of toxic and
corrosive substances
List four (4)
• Oils and fluids must only be disposed of with certified disposal tracking systems.
• Never dispose of oils or fluids in or near a water source
• Always have “kitty litter” available when disposing of oils and fluids
• Ensure oils and fluids are in sealed containers.
• Refer to the relevant Safety Data sheets for specific information.
Disposing of or recycling
materials associated with
the diagnosis and repair of
the ignition systems.
List four (4)
• Sort out components that are usable and non-usable.
• Components that are still usable must be put in storage area and put a tag on it.
• Non usable materials must be placed in recycling bins and dispose it in approved facilities.
• Contact local council for further information on proper disposal method.
7.
Describe the diagnostic testing procedures for the ignition systems listed below.
Procedure
Description (30-50 words each)
Use of diagnostic flow
charts
Answer using 50 - 100
words
• Collect the information about the problem
• Verify the problem
• Thoroughly define what the problem is and when it occurs
• Research all available information to determine the possible causes of the problem.
• Separate the problem by testing.
• Continue testing to pinpoint the cause of the problem.
• Locate and repair the problem, then verify the repair.
Accessing
electrical
terminals and using test
probes without damaging
• The manufacturer provides the information regarding the identification of right connector and separating the connecting terminals from the connector. The manual also has details regarding /var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
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connectors fuse holders or
wiring
Answer using 20 - 50
words.
the disconnection of male connecting plugs from female connecting plugs.
• Long metal probes are used to test the wiring connections. The probes are inserted from the back of the connector. With the help of multimeter, estimate the values without affecting the circuit.
Checking
resistance,
current flow and voltage
drop
Answer using 50 - 100
words.
• Disconnect the battery
• Disconnect the high-tension leads at spark plugs and coil
• Unclip the distributor cap and detach the cap and lead assembly
• Check each lead resistance using an ohmmeter
• Connect the ohmmeter to the high-tension lead terminal and to the distributor cap or rotor arm connection and record the resistance
• If the resistance is high, the lead to cap connection should be cleaned and resistance rechecked before the lead is replaced
• Clean the distributor cap and refit the assembly, reconnect the high-
tension leads
• Reconnect the battery.
Testing ignition coils
Answer using 50 to 100
words.
• Use a multimeter to detect and measure the resistance of the coil in the primary and the secondary circuits and compare with the manufacturer specifications to undergo necessary actions.
•Inspect for any physical damages on the coil ends and the condition of the connectors in the coil.
• Connect the oscilloscope to measure the voltage of the coil and run the system as recommended and take the necessary actions as per the
manufacturers repair manual.
8.
Describe the procedure for the items in the table below.
Procedure
Description
Using oscilloscopes
Answer using 20 to 50 words
The specialized automotive oscilloscope is also called automotive lab scope, engine analyser or motor-tester. When checking circuits, power supplies and grounding, the signals often change too rapidly to check with a Multimeter. Often there are no trouble codes saved in the ECU/ECM, but the problem exists because a trouble code is only recorded when there is a broken or short to the positive or the negative power supply or the sensor/actuator is faulty.
Interpreting ignition system
primary and secondary
waveforms
Answer using 50 to 100
words.
The primary or secondary ignition location of a single cylinder at a particular time is shown. Ignition error of a specific cylinder can be determined by the single cylinder pattern. Raster and parade modes
are displayed with the single cylinders.
9.
Describe the repair procedures for ignition systems in the table below. Answer using 30-60 words
for each.
Procedure
Description
Removing and replacing Before working, must ensure to look into manufacturer’s /var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
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faulty or damaged components
specification for the specific details and workshop manual for the procedures to be done in removing and replacing damaged components. Always take notice of the sequence of the work in removing to make it easier when installing a new component. Take photos if necessary.
Confirming that no other
problems are present as a
result of the repair.
Visual inspect the component if there are no loose connections of lines or untightened bolts and nuts. Turn the vehicle on and do a test drive if necessary to confirm no other problems are present. Document all repairs checking that was done.
10.
Describe the post-repair testing procedures for ignition systems in the table below.
Circuit/System
Description
Static
and
dynamic
performance
tests
of
ignition systems
Answer using 50 – 100 words.
For static testing, ensure that there is no icon that is illuminating in the dashboard. Lift also the vehicle in a hoist to check the bottom of
the vehicle for fuel leaks and other components. For dynamic testing, do a test drive in the vehicle and observe irregularities that the vehicle should not have.
Confirming that no other
problems are present as a
result of the repair.
Answer using 20 – 50 words.
Document all the work that is done on the checklist and do a post-
test checking to ensure that all faults were rectified and in good and proper working condition.
11.
Describe the generating principles, including Faraday’s Law and inducing electromotive force (EMF). Write your answers in the table below. Faraday’s Law
Answer using 20 to 50 words
Faraday's Law states that
changing magnetic fluxes through coiled wires generate electricity
. In other words, the induced electricity is proportional to the change in magnetic flux, so the greater the change is the more electricity generated. Therefore, whenever a conductor is placed in a varying magnetic field, an electromotive force is induced
Ignition coils
Answer using 20 to 50 words
When an electric current flows through an electrical conductor such as a coil of wire, it creates a magnetic field around the coil and produces the required high voltages. It makes use of the relationship between electricity and magnetism.
Electromagnetic induction
in the coil
Answer using 30 to
60 words
It occurs whenever a magnetic field and an electric conductor move relative to one another so the conductor crosses lines of force in the
magnetic field
. The current produced by electromagnetic induction is greater when the magnet or coil moves faster, the coil has more turns, or the magnet is stronger.
Function and operation of
primary windings, iron core
The primary winding receives energy from the AC source.
The /var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
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and secondary windings Answer using 50 to 100
words
secondary winding receives energy from the primary winding and delivers it to the load
. The iron core provides a path for the magnetic lines of flux.
12.
Describe the key features of spark plugs in the table below. Include the following information.
Description
Identification
Thread size
Reach
Heat range
Resistance-type plugs
Type and number of earth electrodes
Ignition lead’s
Firing order
Description of a spark plug.
Write your answer using 20
– 50 words.
It consist of a metal shell with a ceramic insulator and an electrode extending through the centre of the insulator. The metal shell usually has a short earth electrode attached to one side of it which is bent in towards the centre electrode. Threads on the metal shell allow the plug to be screwed into the cylinder head with a specific reach.
Explain why identification can be a problem.
Write your answer using 20
– 50 words.
It is a problem because there are considerations to be followed. Spark plugs are identified by their different features and part numbers. It does not mean that if you have the same size of thread in your new spark plug as the thread in the cylinder head you can automatically use it.
Thread size
List 5 examples.
Thread sizes ranges to metric threads of 10 mm, 12 mm, 14 mm, 18 mm. Some SAE standards have 3/8 inch and ¼ inch thread sizes.
What is spark plug reach?
Write your answer using 20
– 50 words.
Spark plug reach is the length of the thread. This can be 9 mm, 11 mm or 13 mm. It is of the correct reach when its thread is the same length as the thread in the cylinder head.
What does spark plug heat range mean?
Write your answer using 20
– 50 words.
The degree to which a spark plug disperses the heat it receives
is called its heat range. Spark plugs with a high degree of heat dispersal are called high heat range and those with a low degree of heat dispersal are called low heat range.
What does resistance-type plugs do?
Write your answer using 10
– 30 words.
• Between the top terminal and the centre electrode, a resistor of about 5KΩ is present in most of the automotive spark plugs
• Firing voltage is increased by the resistance. To provide this resistance, a few spark plugs use a semiconductor material.
• Resistor reduces RFI (radio frequency interference) that may affect
or damage GPS system of the vehicle.
What type and number of earth diodes are there?
There are different types to ranging to copper, platinum and iridium.
Several spark plugs have 2, 3 or 4 earth electrodes. Life of the spark /var/filecabinet/temp/converter_assets/93/2d/932d8031f587b0d798952e6dc1925b7ff9bc0fe3.docx
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Write your answer using 20
– 50 words.
plugs is extended because of these multi-electrodes, especially the electrodes that are used in direct ignition systems. The direct fire ignition systems enhance the wear rate of the electrodes by firing twice as many times as other systems.
What does ignition leads do?
Answer using 10 – 30 words.
Ignition leads increases firing voltages and decrease spark plug wear
by reducing current. High voltage is carried by these cables from the
distributor or the multiple coils to the spark plugs. The cables or leads contain carbon fibre cores that take the role of resistors in the secondary circuit.
Firing order
Answer using 20 – 50 words.
A sequence in which the power strokes of the engine take place and
the order in which the ignition system must deliver a spark at the spark plugs is known as ignition firing order. The firing order is determined by – The arrangement of the cam lobes on the camshaft, Ignition distributor timing, The shape of the crankshaft.
High tension cables must be connected to the spark plugs in the appropriate firing order for the specific design of engine.
13.
Describe the key features and components of the electronic ignition systems listed in the table below. Pulse generator systems.
List the three (3) main
types and write your
answer using 80 to 100
words.
1. Inductive
- The permanent magnet and inductive winding are fixed to the base plate. The distributor shaft drives an iron trigger wheel. The number of teeth formed on the trigger wheel or reflector matches the num
ber of engine cylinders. If a tooth comes close to the soft iron stator core, the magnetic path is com
pleted causing a flux to flow. When the trigger wheel is moved away from the position showed the air gap between the stator core and the trigger tooth increases due to which the magnetic resistance or reluctance also increases causing the flux in the magnetic circuit to decrease.
2. Hall Generator
- The principle of operation of this type of pulse generator is based on the Hall effect. When a chip made of semiconductor material carries a signal current across it, and is exposed to a magnetic field, a small voltage called the Hall voltage is generated between the chip
edges at 90 degrees to the path taken by the signal current. The Hall
voltage is altered due to the change in the magnetic field strength and this effect can be used as a switching device to trigger the ignition point by varying the Hall current.
3. Optical pulse generator
- This type works on sens
ing the spark point by using a shutter to interrupt a light beam projected by a light-emitting diode (LED) on to a phototransistor. This photoelectrical method of triggering was developed for the Lumenition system.
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Stator and rotor units
Answer using 20 to 50
words.
The pulse generator also called as pulse ignitor consists of the stator
and the rotor unit.
Stator unit
- The stator is the permanent magnet with a pickup coil connected to the ignition control unit with two leads.
Rotor unit
– A rotor is made of soft iron and has the number of teeth on each cylinder. When this tooth rotates through the pickup coil, small amount of AC voltage is induced into the pickup coil. This pulse is used by the igniter to accurately produce the timed signal to
trigger the action.
Ignition control units
Answer using 50 to 100
words.
Ignition control unit is also known as ignition module. The control unit is placed either inside or outside of the distributor. The ignition module comprises of transistors, resistors, and diodes. Power transistors or the coil-driving transistors are used as a switching device for ignition-coil primary circuit.
The control unit analyses the signals received from the pulse generator and opens the power transistor which in turn opens the primary circuit. This causes the magnetic field of the primary windings in the ignition coil to collapse thereby inducing high voltage into secondary winding.
Current limiting and dwell
control
Answer using 50 to 100
words.
Current limiting
Many ignition systems are current limiting. The ignition coil in the system is saturated by the current limiting systems by passing high current through the primary winding for a fraction of a second. The requirement of high current is removed as soon as the coil is saturated. To maintain the saturation of coil, a small amount of current is passed.
Dwell control
The period of time that the current flows in the primary circuit and a
magnetic field dwell around the ignition coil is called the dwell period. In the dwell period, the magnetic field in the coil is pushed to the maximum strength. With the shorter dwell period, there will be insufficient field build to generate a good spark.
14.
Describe the key features and components of an electronic ignition systems in the table below.
Hall
effect
systems,
including:
hall effect devices
permanent magnet
signal waveform
Answer using 100 to 150
words
Hall effect devices
It produces a digital pulse by mean of a Hall Effect generator. The tabs and windows rotate between the parts of the hall-effect device to provide a switching arrangement.
Permanent magnet
It is a component of an electronic ignition system that produces an alternating current. It spins near a coil of wire and as the magnet spins, it generates a strong magnetic force that is held back by a primary coil.
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Signal waveform
The PIP rotor has tabs and windows of equal size, so that as it rotates, the time on is the same as the time off. This produces a signal with a square waveform. When a tab enters the air gap, the signal voltage rises. While moving through the air gap, the voltage remains constant. On leaving the air gap, the voltage drops.
Optical ignition systems,
including:
light emitting diodes
(LED’s)
rotating disc
optical
electronic
semiconductors
Answer using 30 to 60
words
Light emitting diodes
It converts electrical energy directly into light, delivering efficient light generation with little-wasted electricity.
Rotating disc
It serves as protractor disc in the distributor to rotate between two optical electronic sensors. The disc has slits or holes arranged around
its perimeter.
Optical electronic semiconductors
It is a device that is divided into two major groups, light-emitting diodes and laser diodes, and solar cells and photodetectors. The purpose of optical semiconductors is to convert light into electric current or convert electric current into light.
Coil on plug ignition
systems
Answer using 20 to 50
words
In the coil-on-plug ignition system, each ignition coil is mounted directly onto the top of the sparkplug. Hence, the voltage from the coil directly goes to the sparkplug eliminating the plug wire or distributor or lose wires, current leakage breakdown and replace.
The elimination of wires reduces the radio frequency interference and the electromagnetic interference which disturbs the computer systems.
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Student Name: Alexis Ponciano Rojas
Student ID: 199690
Unit: AURETR123 Diagnose and repair spark ignition engine management systems
Assessment
Satisfactory (S) / Not Yet Satisfactory (NYS)
Date
Comment
Initials
Part A – Short answer questions
S
22/02/2
2
BR
Part B -
Practical Assessment
S
22/02/2
2
See Practical Observation Sheet
BR
Feedback from the Student:
I have been provided with feedback on this assessment from the assessor for this unit
Student Signature: Overall competency has been achieved: YES □ NO □
□
Assessment submitted past end date
Assessor’s Name: BRETT REID
Result Date: 22/02/22
Assessor’s Signature: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Student Assessment Feedback Form
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Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR123
Unit Name
Diagnose and repair spark ignition engine management systems
Due Date 22/02/22
Assessment Name
Automotive Portfolio
Part A: Short answer questions
Student No
.
199690
Student Name
Alexis Ponciano Rojas
Student Phone
0404682842
Student Email
alrrponciano@gmail.com
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: _Alexis Ponciano Rojas______
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
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Student Assessment Cover Sheet
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Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR123 Unit Title: Diagnose and repair spark ignition engine management systems
For this assessment you are required to answer all of the questions. You are permitted to research the answers by reading the learner guide, text books, theory notes and accessing the internet. If more room is needed label each task with the question number and use headings or dot points to make your work clear for your trainer and assessor. Please follow the Referencing Guide
contained on your Course handbook. Please attach a student assessment cover sheet
to each unit submission. You must complete the cover sheet in full detail.
1.
Where can you find the information required in the table below? Item
Location
Three (3) examples
Content
Three (3) examples
Workplace procedures related
to a test and repair basic
electrical circuits
Reception desk
Google
Safe work Australia
Safe working procedures
Hazard management
procedures
Emergency information
Manufacturer
specifications
related to a test and repair
basic electrical circuits
Owner manual
Manufacturer Website
Repair manual of the vehicle
Data testing procedures
starter systems fault finding
specifications.
starter data electrical
specifications
2.
What methods can you use to locate information from the customer and your supervisor regarding the faults in the spark ignition engine management systems? List three (3). ●
Ask the customer to be specific with the problem.
●
Test d
rive the car ●
Check the service book 3.
List three (3) methods you can use to locate the required information to diagnose and repair spark ignition engine management systems.
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Assessment Questions
Part A
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●
Locate a workshop manual available from reception desk and look for the information required to diagnose and repair ignition systems
●
Look for information on the internet in sites that have a good reputation
●
Ask a supervisor or the manager for more resources 4.
Explain the workplace procedures in the table below required to diagnose and repair spark ignition engine management systems. Describe the housekeeping procedures required when diagnosing and repairing a spark ignition management system.
Establish serviceability of tools and equipment.
Visual examination damage, Physical where practical examination of
serviceability
Documentation procedures
Qualification (full understanding) of fault conditions
Tools and equipment procedures
Identify, select, and prepare tools, equipment required to support the diagnosis
process.
Storage of equipment procedures
Procedures for ensuring tools and equipment are in good working order and are
stored correctly and easily accessible.
Identification, tagging and isolation of faulty equipment procedures.
Access to fault reporting tags and information required describing nature of
equipment fault.
Safe disposal of excess material procedures
Excess material must be disposed of in a safe and secure manner, with regards to
environmental requirements
Recycling procedures
Recyclable material to be placed in designated secure containers.
5.
Describe workplace health and safety requirements related to diagnosing and repairing spark ignition engine management systems, including the procedures for these, listed in the table below.
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Type
Description
Using specialised tools and
equipment,
including
multimeters, scan tools and
oscilloscopes
Specialised equipment must only be used for its specific purpose.
Always refer to the manufacturer's operating instructions before applying them to a testing procedure
Ensure all specialised equipment is calibrated and any firmware is up to date.
Using appropriate personal
protective
equipment
(PPE)
List five (5)
Face shield: Skin needs acid protection as well.
Specialised equipment must only be used for its specific purpose.
Eye protection should be worn at all times
6.
Describe the workplace health and safety requirements relating to diagnosing and repairing spark ignition engine management systems, including procedures listed in the table below.
Working with high pressure
petrol fuel systems
Gasoline vapour is extremely flammable and can be ignited with a tiny spark. We must prevent fuel vapour or spray from coming into contact with any spark or flame. Disconnect the negative battery cable before beginning any test or repair procedure on a vehicle unless.That procedure requires electrical power from the battery.
Working on vehicles high voltage ignition systems
In the electronic ignition, voltage can go up to 30 kV. Under unfavourable circumstances, such as moisture in the engine compartment, the voltage peaks can penetrate the insulation and cause a shock when touched.
Hazards
List two (2)
Associated risks
List four (4)
Identifying hazards and risks associated with wearing watches or jewellery while working around high voltage wiring systems.
Necklace can short circuit a high voltage system.
Watches can also short circuit
a high voltage system
You could be electrocuted
You could suffer a heart attack.
Severe burn Fire can occur.
7.
Describe the environmental requirements relating to diagnosing and repairing spark ignition engine management systems listed in the table below.
Risks
Environmental Requirement – List three (3) for each
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Risk of explosion
Area needs to have ventilation at all times and need to have entrances and exits signalised.
Risk of fire
Water hoses at disposition at all times.
Fabric free area.
Extinguisher and fire blankets available Risk of expelling fuel
Spilling kits should be at disposition and in an easy to access place.
Risk of expelling battery acid
source of water needs to be close and available 8.
Describe the diagnostic testing procedures for spark ignition engine management systems, listed in the table below.
Diagnostic flow charts
If ignition problems or a no-start condition is encountered, first perform an "On Vehicle. Inspection Spark Test''. Check that spark occurs, if no spark occurs, follow the correct diagnostic flow chart (engine and year) and necessary service procedures.
Fuel system testing, including low pressure fuel system testing.
If the fuel pump is not delivering adequate fuel pressure and volume to the engine, the engine may not start or run correctly.
Fuel system testing, including high pressure fuel
system testing.
A pump that can deliver adequate pressure but not enough volume may allow the engine to start and idle normally. Still, it will starve the engine for fuel and cause a loss of power when the engine is under load.
9.
Describe the procedures for testing the electrical systems listed in the table below.
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Accessing
electrical
terminals and using test
probes without damaging
connectors fuse holders or
wiring
-Clean the area
-Remove the fuse with appropriate tool -Place the probes on terminals slowly.
Injector testing
You can visually inspect the fuel spray on TBI system injectors. Fuel flow spray is readily accessible, making it fast to check for potential problems.
1. Remove the cover of the air cleaner housing (where the air filter lives).
2. Ask an assistant to start (or crank the engine, if it doesn't start).
3. Check the spray pattern coming our of the injector.
Sensors testing
1. Reference the manufacturer’s information, as necessary. Determine the actuators to
be tested and the required operating parameters required for correct operation.
2. Select the appropriate test equipment.
3. Conduct actuator tests on and off the vehicle as required.
4. Analyze the test results against the manufacturer’s specifications and make
recommendations as required.
Actuator testing
Check mechanical function
Check the electrical function
Throttle position sensors
(TPS)
Check voltage at positive and negative probe of the sensor. Check voltage at positive and negative probe of the sensor of the frame of the car.
10.
Describe the procedures for accessing and interpreting scan tool data listed in the table below.
Diagnostic trouble codes (DTC)
Plug a scan tool to the OBD port of the car and look for the codes that appear on the internet Freeze frame data.
Access freeze frame with scan tool and interpret by checking with J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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manufacturers specifications Waveforms
Access to those via a scan tool. interpret according to manufacturer's specifications
Live Data
Access to those via a scan tool. interpret according to manufacturer's specifications
11.
Describe the repair procedures for spark ignition engine management systems, including the procedures for removing and replacing the electrical or electronic components for the following listed below:
a)
Sensors – List four (4) steps
-Switch off the engine
-Ensure battery has been disconnected
-Replace wit a new sensor -Clear error code.
b)
Actuators – List four (4) steps
-Switch off the engine
-Ensure battery has been disconnected
-Replace wit a new actuator
-Clear error code.
c)
Fuel Injectors - Write your answer using. -Switch off the engine
-Ensure battery has been disconnected
-Replace wit a new fuel injector
-Clear error code.
d)
Fuel Pumps. -Switch off the engine
-Ensure battery has been disconnected
-Replace with new fuel pump
-Clear error code.
e)
Adjusting and recalibrating components and associated systems.
-Plug scan tool and adjust according to manufacturer's specifications
12.
Describe the post repair testing procedures listed in the table below.
ECS Systems
Description
DTC Clearance procedures
Clic the clear DTS button in the trouble codes view. Read and acknowledge the information and reset the commands and clear the codes.
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Checking for electrical connector mating
Check if there is current to wing from both ends
Assessing engine performance
Plug scan tool and assess engine
13.
Describe the operating principles of spark ignition engine management systems and associated components listed in the table below.
Combustion
When air fuel mixture reaches a specific compression, the spark
plug make it explode
Air-fuel ratios and chemistry of combustion
To have combustion, the air fuel ratio have to be adjusted properly
by sensors
Composition of petrol fuel, including octane rating.
octane ratings of 91, 95, and 98 fuel will contain many trace
elements the key compounds are carbon (93% - 97%), hydrogen
(10% - 14%), nitrogen (0.1% - 2%), oxygen (01. % - 1.5% and sulphur
(0.5% -6%) with a few trace metals making up a very small
percentage or the petroleum composition.
Indirect and direct fuel injection
Direct injection: fuel is sprayed directly in the combustion chamber
Indirect injection : fuel is sprayed towards the inlet valve
14.
Describe the purpose and operation of spark ignition engine management systems and including the following fuel system components listed in the table below.
Fuel Filters
Filters parasites particles in fuel system
Fuel pumps
Prime fuel system and injectors
Fuel pressure regulators
Maintain operational fuel pressure
Fuel injectors
Spray fuel in a mist for operational combustion
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15.
Describe the purpose and operation of spark ignition engine management systems of the following electronic control system inputs listed in the table below.
Throttle position sensors
It monitors the air in the intake of the engine to adjust the fualy
correct air fuel ratio
Coolant temperature sensors
It monitors the engine coolant level to check it coolant is at
operational temp
Oxygen sensors
It monitors how much unburned air is in the exhaust manifold to
check if the air fuel ratio is good
Load sensors
A flow meter is an in-line device that measures the rate of flow of a
fluid-either in volume or mass.
Airflow meters
Monitors the flow of air entering in the engine
Intake air temperature sensors
It monitors the temperature of the air entering the engine. The
engine
computer (PCM) needs this information to estimate air density so it
can balance air/fuel mixture.
Crankshaft position sensors
A crank sensor is an electronic device used in an internal combustion
engine, both petrol and diesel, to monitor the position or rotational
speed of the crankshaft. This information is used by engine
management systems to control the fuel injection or the ignition
system timing and other engine parameters.
Camshaft position sensors
The Camshaft Position Sensor detects camshaft rotation and is
mounted near the cylinder head so that the sensor is opposite to the
timing rotor attached to the engine camshaft. The engine ECU
detects
the camshaft angle and performs cylinder recognition based on the
signals detected by the camshaft position sensor
Battery voltage
Give the appropriate supply in voltage to the ignition
coils or distributor
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Accessory load sensors
A load cell (or loadcell) is a transducer which converts force into
measurable electrical output. Although there
are many varieties of force sensors, strain gauge load cells are the
most commonly used type.
Knock sensors.
A car knock sensor is located on the intake manifold, cylinder, or
engine block. The purpose of the knock sensor is to sense unusual
pulsations caused by the engine detonation.
16.
Describe the key features of electronic control units (ECU’s) listed in the table below.
Read only Memory (ROM)
Read-only memory (ROM) is a type of non-volatile memory used in
computers and other electronic devices. Data stored in ROM is
electronically modified after the manufacture of the memory device.
Programmable read-only memory (PROM)
A programmable read-only memory (PROM) is a form of digital
memory where a fuse or anti-fuse locks the setting of each bit. (e-
FUSEs are also used) It is one type of ROM (readonly memory).
The data in them are permanent and cannot be changed.
Electronically erasable programmable read-only memory (EEPROM)
EEPROM (electrically erasable programmable read-only memory) is
user-modifiable readonly memory (ROM) that can be erased and
reprogrammed (written to) repeatedly through the application of
higher than usual electrical voltage. Unlike EPROM chips, EEPROMs
do not need to be removed from the computer to be modified
Random access memory (RAM)
Random-access memory is a form of computer memory that can be
read and changed in any order, typically used to store working data
and machine code.
Multiplexing
Multiplexing is a way of sending multiple signals or streams of
information over a communications link at the same time in the form
of a single, complex signal; the receiver recovers the separate signals,
a process called demultiplexing
Adaptive learning
Adaptive Learning is a strategy used by O.E.M. automotive
manufacturers to maintain long term tuning accuracy.
This strategy allows for continuously changing climate conditions to
be always compensated for by the ECU. This strategy is vastly different
from closed-loop type control systems
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Short-term fuel trim (STFT)
Short Term Fuel Trim. Short Term Fuel Trim (STFT1 and STFT2) is the
computer's immediate response to adjust the air/fuel ratio. In
positive corrections, fuel is added to adjust
Long-term fuel trim (LTFT)
Long-term fuel trims are measured over longer time intervals by
oxygen, or air-fuel ratio sensors downstream of the catalytic
converter. In practice, the signal voltages these sensors generate are
not directly implicated in fuel delivery strategies, although there are
some exceptions to this rule
Sensor reference voltage and sensor grounds
The vehicles computer supplies a reference voltage to many of the
onboard semen, Typically, this reference signal is 5-Vo is, On another
vehicle, a may refer to the fuel pressure sensor.
17.
Describe the purpose and operation of spark ignition engine management systems including systems outputs listed in the table below. Injectors
Fuel injectors are parts of modern car engines that deliver fuel to the
engine's combustion chamber, directly or indirectly. These small
electromechanical devices are typically positioned at a certain angle to
make sure the fuel is sprayed towards the engine's inlet valve or
directly
into the cylinder.
Idle speed control devices
An idle air control actuator or idle air control valve (IAC actuator/ valve)
is a device commonly used in fuel-injected vehicles to control the
engine idling rotational speed (RPM). In carbureted vehicles, a similar
a device known as an idle speed control actuator is used.
Fuel pump relays
The fuel pump relay is an electronic component found on virtually all
vehicles equipped with an internal combustion engine. The ignition or
powertrain control module controls the fuel pump relay and when
switched on, will provide current to the fuel pump so that it may
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function.
Engine cooling fans
The cooling fan system works by forcing airflow through the radiator.
Its
function is to facilitate and support the engine's temperature
management. It is located at the front of the vehicle, either in front or
behind the radiator.
Air conditioning compressor controls
It refers to an air conditioning system wherein an engine-driven
refrigerant compressor is cycled on and off to control the compressor
capacity. When the clutch is engaged, the engine drives the
compressor;
when the clutch is disengaged, the engine is effectively disconnected
from the compressor.
Broadband intake manifolds
The primary function of the intake manifold is to evenly distribute the
combustion mixture (or just air in a direct injection engine) to each
intake
port in the cylinder head(s). Even distribution is vital to optimising the
efficiency and performance of the engine.
Exhaust gas recirculation solenoid controls
The purpose of the exhaust gas recirculation solenoid is to control
recirculate exhaust gases that have exited the engine, back into the
intake manifold so that they can be re-burned. The EGR solenoid is
controlled by the engine computer and activated at precise times to
achieve the best performance, efficiency, and emissions from the
engine
Carbon cannister purge controls
The original application for the purge is to avoid the emission of
gasoline
vapour out of the gasoline tank. Nowadays this vapour is captured by a
carbon canister. The function of the valve is to control the purge flow
which discharges the carbon canister content. The valve gets installed
in
the engine compartment.
Throttle motor (drive by
wire) controls
In an internal combustion engine, the throttle is a means of controlling
an engine's power by regulating the amount of fuel or air entering the
engine. In a motor vehicle, the control used by the driver to regulate
power is sometimes called the throttle, accelerator, or gas pedal.
Variable valve timing controls
In internal combustion engines, variable valve timing (VT) is the process
of altering the timing of a valve lift event and is often used to improve
performance, fuel economy or emissions. Two-stroke engines use a
power valve system to get similar results to WVT.
Assembly line diagnostic link (ALDL)
Assembly Line
Diagnostic Link or ALL is a proprietary on-board diagnostics
system developed by General Motors
betore the standardisation of OBD-2. Manufacturers primarily used ALL
for diagnostics at their dealerships and official maintenance facilities.
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18.
Describe the purpose and operation of ignition systems and components in the listed in the table
below.
Spark plugs
A spark plug is essentially two electrodes that are mounted
such that a high-voltage spark leaps over them.
Ignition leads.
It transport energy from the coil to the spark plug
Ignition coils, including electromagnetic induction.
The coil is the focal point of the ignition system. Its sole
function is to transform 9-12 volts into thousands of volts
so that there is enough voltage to make the spark plug
move between the electrodes.
Ignition timing, including variable ignition timing according to engine load, speed and knock sensor input.
Ignition timing controls when the spark plug fires during
the Compression Stroke. Ignition timing is measured in
degrees of crankshaft rotation before top dead centre
(BTDC).
Dwell period
In ignition systems, Dwell refers to the period of time
that the coil is turned on. That is, it is the length of time
that current flows through the primary winding of the
coil. In old points systems, it is time the points are closed
19.
Describe the purpose and operation of ECU control of ignition coil switching and methods of generating timing signals, listed below:
a)
Crankshaft position sensor signals including inductive pick-up, Hall effect and light emitting diode (LED).
Profile Ignition Pick-up (PIP) is a Hall Effect magnetic sensor that triggers the TFl and injectors, There
is a shutter wheel alternately covers and uncovers a fixed magnet as it rotates. The change in the
magnetic field activates the sensor. The purpose of a TFI module is to control the spark output of the
ignition system. A signal is sent from the TFl to the ECU, where the ECU processes the received signal
and correspondingly outputs the correct spark control for engine timing.
b)
Waste Spark Ignition Systems. The wasted spark system is an ignition system used in some four-stroke cycle internal combustion engines. In a worn spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke.
c)
Coil-on-plug ignition systems. J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Also Known As (Direct Ignition System ) With the Coil On Plug Ignition System, each spark plug is
ignited by its own coil. That means the (PCM) or (ECM) can control the spark and spark timing on an
individual, per-cylinder basis.
d)
Integrated ignition systems. Integrated Ignition Assembly contains (Ent en co, Hall Effect sensor and ignition unit inside the
distributor. Only two wires have in pinternected in the main plug; one to 412 Vignition, and the
other to tachometer and/or A/C amplifier.
Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR123
Unit Name
Diagnose and repair spark ignition engine management systems
Due Date
22/02/22
Assessment Name
Automotive Portfolio
Part B: Practical Assessment
Student No
.
199690
Student Name
Alexis Ponciano Rojas
Student Phone
________________
Student Email
_____________________________
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: Alexis Ponciano Rojas J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
Imagine Education
Student Assessment Cover Sheet
Imagine Education
Student Assessment Cover Sheet
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Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR123 Unit Title: Diagnose and repair spark ignition engine management systems
You are working in an automotive workshop. Three (3) clients have brought in three (3) different
vehicles or machinery that require diagnosis and repairs to the spark ignition engine management
system.
As part of your job role, you have the following job responsibilities: ●
Locate required sources of information efficiently
●
Develop a sequenced plan for a specific task
●
Organise and interpret technical information from workplace procedures, manufacturer
procedures and manufacturer specifications
●
Interpret text, symbols and wiring diagrams in information relating to electrical system
testing and repair equipment from manufacturer specifications and workplace instructions
and procedures
●
Clarify instructions
●
Obtain information from customers and supervisors
●
Match electrical components and part identification numbers to workplace instructions,
vehicle, machinery and component part lists, and manufacturer specifications
●
Interpret vehicle electrical measurements and readings
●
Measure voltage, current and resistance and uses mathematical operations
●
Calculate deviations from manufacturer specifications
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
Imagine Education
Practical Assessment
Part B
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●
Plans own work requirements
●
Prioritise actions to achieve required outcomes
●
Ensure tasks are completed within workplace timeframes
●
Use specialised diagnostic equipment.
Your task is to diagnose and repair
faults in three (3) different spark ignition engine management
systems.
Activity 1 – diagnose and repair the fault in the system input sensor in a vehicle or machinery
Activity 2 – diagnose and repair the fault in the system input sensor in a different vehicle or
machinery
Activity 3 – diagnose and repair the fault in the system output actuator in a different vehicle or
machinery
You must also carry out diagnostic tests in the course of the above
for one (1) of three (3)
additional spark ignition engine management system faults. Your assessor will be acting as your
supervisor and delegate work to you.
The work will be delegated to you from your supervisor (trainer/assessor) as per the activities listed
in this assessment task. The description of the activities is mentioned below.
The role of the supervisor (trainer/assessor) is to allocate the tasks, activities and responsibilities you
will be required to undertake to complete these assessments. Your supervisor (trainer/assessor) will
also observe you when you are completing the activities and evaluate your performance based on
benchmarking in the performance checklists.
You are required to source a testing strategy to diagnose and repair three (3) different spark
ignition engine management systems
●
Faults in two (2) system input sensors
●
Faults in one (1) system output actuator in addition, you are required to carry out diagnostic tests on at least one (1) of three (3) additional
faults. ●
Low or high pressure in the fuel system
●
Damaged sensors, connectors or wiring
●
Leaking or restricted injectors
Your trainer/assessor will advise you which fault you will be required to diagnose for this assessment
task and on which spark ignition engine management system you are to make the diagnosis. The
fault will be different on each vehicle.
After each activity, you will find a Performance Checklist. The list outlines the tasks you need to
perform, and your supervisor (your assessor) will observe. These assessment tasks are given to you
as repair orders.
You need to:
●
Access workplace instructions to identify job requirements and confirm existence of fault
according to workplace procedures
●
Source and interpret required information for diagnosis activity, including customer
complaint, workplace and manufacturer procedures
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●
Source testing strategy to efficiently identify cause of fault using workplace and
manufacturer procedures
●
Identify hazards and environmental issues, assess potential risks and implement control
measures in line with workplace policies
●
Identify diagnostic tools and equipment required for the job and examine them for
serviceability
●
Carry out diagnostic tests according to manufacturer and workplace procedures, and
workplace health and safety requirements
●
Analyse diagnostic test results to identify cause of fault, conducting further tests if required
●
Confirm and report cause of fault according to workplace procedures
●
Develop and report recommendations for necessary repairs or adjustments according to
workplace procedures
●
Source and interpret required information for repair activity, including manufacturer
specifications, workplace and manufacturer procedures
●
Identify repair tools, equipment and materials required for the job and examine for
serviceability
●
Carry out repairs or component replacements and adjustments according to workplace and
manufacturer procedures, manufacturer specifications, workplace health and safety and
environmental requirements
●
Carry out post-repair testing according to workplace procedures, workplace health and
safety and environmental requirements to confirm fault rectification and repair any issues
identified
●
Carry out final inspection to ensure work meets workplace expectations and vehicle is ready
for use
●
Clear work area and dispose of or recycle materials according to workplace procedures
●
Complete documentation according to workplace procedures
You need to read the supervisor’s instruction on the repair order underneath, discuss the tasks listed
with your supervisor for clarification and fill the vehicle’s details and other information on top of the
repair order before starting the work.
You must also fill out the following documents:
●
The Preliminary Inspection Report to record the outcomes of your testing.
●
The Repair Template which outlines how your repair work will be assessed.
●
The Post-Repair testing template to confirm the status of the instrument and warning
systems, if a final inspection has been completed, systems presented ready for use, tools
checked and stored, and all workplace documentation processed. ●
Finalise the information on the Repair Order. J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Activity 1 – Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name: Imagine Education
Repair Order #: 001
Address: Ashmore Gold Coast
ABN#: 12546
Phone: 1234343
Date:
Technician’s Name: Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Contact number: 1234343
Customer’s declaration: By signing this repair
order I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost. Signature:
Vehicle details
Make: Model: Year: Colour: I.D. Number #: GHB546
Vehicle Chassis #: JGF120DH424.NH
ODO/Millage: 32652 km
Concern:
Cause: Recommendation: Rectification/Repair:
Parts used (if any) and quantity: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Testing Strategy Template Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
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Source (s) of Diagnostic process
Preliminary Inspection Report
Date: Time:
Vehicle Identification number: JGF120DH424.NH
Odometer reading: 32652 km
Last service date: 2021
Preliminary inspection conducted by: TECH 1
Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
1
2
3
4
5
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Post-Repair Testing Date: Vehicle Identification Number: JGF120DH424.NH
Odometer reading: 32652 km
Vehicle owner’s name and address: Fred Barley
Ashmore Gold Coast
Technician name:
Tech number: 103
Problem reported: Action taken: Visual inspection comments: Type of post-service testing carried out: Remarks/Comments
Final inspection carried out vehicle presented ready for use: YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Your Assessor will observe you and complete the following checklist. All task criteria must be satisfactorily demonstrated.
Practical Observation Checklist
Your task must address the following performance checklist. To be assessed as satisfactory (S) in this
assessment task the participant needs to
demonstrate competency in the
following critical aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
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Job requirements were determined according to workplace instructions
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Clarify instructions
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Obtain information from customers and supervisors
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Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures.
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Accessed technical information required and interpreted it for diagnosis and repair.
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Develop a sequenced plan for the task
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Accessed safe operating procedures required and interpreted them for equipment.
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Identified any hazards associated with the work
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Identified hazards and managed
the risks ❑
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Follow procedures for using specialised tools and equipment
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Use appropriate personal protective equipment (PPE)
❑
❑
Identify tools and equipment required for testing strategy and ❑ ❑
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Plan own work requirements
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Appropriately use tools and fault-finding techniques for testing the systems according to workplace procedures and safety and environmental requirements, and without causing damage to components or systems
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Compare inspection and test results with manufacturer specifications
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Identify faults from test results and causes of faults are determined
❑ ❑
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Securing pipes and hoses to remove risk of contamination
❑ ❑
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r
e
c
o
m
m
e
n
Access and interpret scan data from manufacturer and component supplier specifications
❑
❑
Use appropriate techniques for conducting test and evaluation tasks according to workplace procedures
❑
❑
The refitting of tested components and reconnection according to manufacturer and component supplier specifications
❑
❑
Carry out post-repair testing according to workplace procedures to confirm fault, and how to rectify any further problems detected as having been introduced during the repair or fabrication process
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Final inspection is made to ensure work completed is to expectation and the vehicle ignition systems is presented to the customer ready for use
❑
❑
Cleaning the work area including
disposal of waste and non-
recyclable materials, and recycling of other materials
❑
❑
Check and store tools and equipment
❑
❑
How any faulty equipment is identified, tagged and isolated
❑
❑
What workplace documentation needs to be processed
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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C
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Final inspection is conducted and the vehicle is presented to the customer ready for use
❑
❑
Process of cleaning the work area including disposal of waste and non-recyclable materials, and recycling of other materials.
❑
❑
Checking and storing tools and equipment.
❑
❑
Remove tools used
❑
❑
Remove waste
❑
❑
Sort and remove recyclables and
non-recyclables
❑
❑
Workplace documentation needs to be processed
❑
❑
Legibly complete all templates
❑
❑
Complete all documentation required
❑
❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Activity 2 – Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name: Imagine Education Repair Order #: 002
Address: Ashmore Gold Coast
ABN#: 12546 Phone: 1234343
Date:
Technician’s Name: Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Contact number: 1234343
Customer’s declaration: By signing this repair
order I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost. Signature:
Vehicle details
Make: Model: Year: Colour: I.D. Number #: GHB546
Vehicle Chassis #: JGF120DH424.NH
ODO/Millage: 32652 km
Concern:
Cause: Recommendation: Rectification/Repair:
Parts used (if any) and quantity: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Testing Strategy Template Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Source (s) of Diagnostic process
Preliminary Inspection Report
Date: Time:
Vehicle Identification number: JGF120DH424.NH
Odometer reading: 32652 km
Last service date: 2021
Preliminary inspection conducted by: TECH 1
Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
1
2
3
4
5
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Post-Repair Testing Date: __/__/____
Vehicle Identification Number: JGF120DH424.NH
Odometer reading: 32652 km
Vehicle owner’s name and address: Fred Barley
Ashmore Gold Coast
Technician name:
Tech number: 103
Problem reported: Action taken: Visual inspection comments: Type of post-service testing carried out: Remarks/Comments
Final inspection carried out vehicle presented ready for use: YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Your Assessor will observe you and complete the following checklist. All task criteria must be satisfactorily demonstrated.
Practical Observation Checklist
Your task must address the following performance checklist. To be assessed as satisfactory (S) in this
assessment task the participant needs to
demonstrate competency in the
following critical aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
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t
h
e
Job requirements were determined according to workplace instructions
❑
❑
Clarify instructions
❑
❑
Obtain information from customers and supervisors
❑
❑
Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures.
❑
❑
Accessed technical information required and interpreted it for diagnosis and repair.
❑
❑
Develop a sequenced plan for the task
❑
❑
Accessed safe operating procedures required and interpreted them for equipment.
❑
❑
Identified any hazards associated with the work
❑
❑
Identified hazards and managed
the risks ❑
❑
Follow procedures for using specialised tools and equipment
❑
❑
Use appropriate personal protective equipment (PPE)
❑
❑
Identify tools and equipment required for testing strategy and ❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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v
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c
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establish serviceability
D
i
a
g
n
o
s
e
a
n
d
r
e
p
a
i
r
Inspect damage to the vehicles ignition systems
❑
❑
Plan own work requirements
❑
❑
Correctly use specialised diagnostic equipment
❑
❑
Appropriately use tools and fault-finding techniques for testing the systems according to workplace procedures and safety and environmental requirements, and without causing damage to components or systems
❑
❑
Compare inspection and test results with manufacturer specifications
❑
❑
Identify faults from test results and causes of faults are determined
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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t
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e
h
i
c
l
e
i
g
n
i
t
i
o
n
s
y
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Follow workplace procedures with regards to confirmation and
reporting
❑
❑
D
i
s
m
a
n
t
l
i
n
g
a
n
d
r
e
Labelling of components before removal
❑
❑
Removal of components according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
❑
❑
Securing pipes and hoses to remove risk of contamination
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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I
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i
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g
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e
s
u
l
t
s
a
n
d
r
e
c
o
m
m
e
n
Access and interpret scan data from manufacturer and component supplier specifications
❑
❑
Use appropriate techniques for conducting test and evaluation tasks according to workplace procedures
❑
❑
The refitting of tested components and reconnection according to manufacturer and component supplier specifications
❑
❑
Carry out post-repair testing according to workplace procedures to confirm fault, and how to rectify any further problems detected as having been introduced during the repair or fabrication process
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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t
c
o
m
p
o
n
e
n
t
s
Final inspection is made to ensure work completed is to expectation and the vehicle ignition systems is presented to the customer ready for use
❑
❑
Cleaning the work area including
disposal of waste and non-
recyclable materials, and recycling of other materials
❑
❑
Check and store tools and equipment
❑
❑
How any faulty equipment is identified, tagged and isolated
❑
❑
What workplace documentation needs to be processed
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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C
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p
l
e
t
e
w
o
r
k
p
r
o
c
e
s
s
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s
Final inspection is conducted and the vehicle is presented to the customer ready for use
❑
❑
Process of cleaning the work area including disposal of waste and non-recyclable materials, and recycling of other materials.
❑
❑
Checking and storing tools and equipment.
❑
❑
Remove tools used
❑
❑
Remove waste
❑
❑
Sort and remove recyclables and
non-recyclables
❑
❑
Workplace documentation needs to be processed
❑
❑
Legibly complete all templates
❑
❑
Complete all documentation required
❑
❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Activity 3 – Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name: Imagine Education Repair Order #: 003
Address: Ashmore Gold Coast
ABN#: 12546 Phone: 1234343
Date:
Technician’s Name: Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Contact number: 1234343
Customer’s declaration: By signing this repair
order I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost. Signature:
Vehicle details
Make: Model: Year: Colour: I.D. Number #: GHB546
Vehicle Chassis #: JGF120DH424.NH
ODO/Millage: 32652 km
Concern:
Cause: Recommendation: Rectification/Repair:
Parts used (if any) and quantity: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Testing Strategy Template Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Source (s) of Diagnostic process
Preliminary Inspection Report
Date: Time:
Vehicle Identification number: JGF120DH424.NH
Odometer reading: 32652 km
Last service date: 2021
Preliminary inspection conducted by: TECH 1
Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
1
2
3
4
5
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Post-Repair Testing Date: __/__/____
Vehicle Identification Number: JGF120DH424.NH
Odometer reading: 32652 km
Vehicle owner’s name and address: Fred Barley
Ashmore Gold Coast
Technician name:
Tech number: 103
Problem reported: Action taken: Visual inspection comments: Type of post-service testing carried out: Remarks/Comments
Final inspection carried out vehicle presented ready for use: YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date: J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Your Assessor will observe you and complete the following checklist. All task criteria must be satisfactorily demonstrated.
Practical Observation Checklist
Your task must address the following performance checklist. To be assessed as satisfactory (S) in this
assessment task the participant needs to
demonstrate competency in the
following critical aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
P
r
e
p
a
r
e
t
o
d
i
a
g
n
o
s
e
a
n
d
r
e
p
a
i
r
t
h
e
Job requirements were determined according to workplace instructions
❑
❑
Clarify instructions
❑
❑
Obtain information from customers and supervisors
❑
❑
Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures.
❑
❑
Accessed technical information required and interpreted it for diagnosis and repair.
❑
❑
Develop a sequenced plan for the task
❑
❑
Accessed safe operating procedures required and interpreted them for equipment.
❑
❑
Identified any hazards associated with the work
❑
❑
Identified hazards and managed
the risks ❑
❑
Follow procedures for using specialised tools and equipment
❑
❑
Use appropriate personal protective equipment (PPE)
❑
❑
Identify tools and equipment required for testing strategy and ❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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v
e
h
i
c
l
e
i
g
n
i
t
i
o
n
s
y
s
t
e
m
s
establish serviceability
D
i
a
g
n
o
s
e
a
n
d
r
e
p
a
i
r
Inspect damage to the vehicles ignition systems
❑
❑
Plan own work requirements
❑
❑
Correctly use specialised diagnostic equipment
❑
❑
Appropriately use tools and fault-finding techniques for testing the systems according to workplace procedures and safety and environmental requirements, and without causing damage to components or systems
❑
❑
Compare inspection and test results with manufacturer specifications
❑
❑
Identify faults from test results and causes of faults are determined
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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t
h
e
v
e
h
i
c
l
e
i
g
n
i
t
i
o
n
s
y
s
t
e
m
s
Follow workplace procedures with regards to confirmation and
reporting
❑
❑
D
i
s
m
a
n
t
l
i
n
g
a
n
d
r
e
Labelling of components before removal
❑
❑
Removal of components according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
❑
❑
Securing pipes and hoses to remove risk of contamination
❑ ❑
J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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J:\VET\Automotive\AUR30620 - Cert III Light Vehicle Mech Tech\AURETR123\STUDENT ASSESSMENT GUIDE\AURETR123 Student Assessment - Theory v1.1.docx
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Access and interpret scan data from manufacturer and component supplier specifications
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Use appropriate techniques for conducting test and evaluation tasks according to workplace procedures
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The refitting of tested components and reconnection according to manufacturer and component supplier specifications
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Carry out post-repair testing according to workplace procedures to confirm fault, and how to rectify any further problems detected as having been introduced during the repair or fabrication process
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Final inspection is made to ensure work completed is to expectation and the vehicle ignition systems is presented to the customer ready for use
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Cleaning the work area including
disposal of waste and non-
recyclable materials, and recycling of other materials
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Check and store tools and equipment
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How any faulty equipment is identified, tagged and isolated
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What workplace documentation needs to be processed
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Final inspection is conducted and the vehicle is presented to the customer ready for use
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Process of cleaning the work area including disposal of waste and non-recyclable materials, and recycling of other materials.
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Checking and storing tools and equipment.
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Remove tools used
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Remove waste
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Sort and remove recyclables and
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Workplace documentation needs to be processed
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Legibly complete all templates
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Complete all documentation required
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Student Name: Wei-Hsiang Lin Student ID: 0003000193
Unit: AURETR122 Diagnose and repair vehicle dynamic control systems
Assessment
Satisfactory (S) / Not Yet Satisfactory (NYS)
Date
Comment
Initials
Part A – Short answer questions
Part B -
Practical Assessment
See Practical Observation Sheet
Feedback from the Student:
I have been provided with feedback on this assessment from the assessor for this unit
Student Signature: Overall competency has been achieved: YES □ NO □
□
Assessment submitted past end date
Assessor’s Name: BRETT REID Result Date: Assessor’s Signature: /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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Student Assessment Cover Sheet
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Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR122
Unit Name
Diagnose and repair vehicle dynamic control systems
Due Date: 20/04/22
Assessment Name
Automotive Portfolio
Part A: Short answer questions
Student No
.
0003000193
Student Name
Wei-Hsiang Lin
Student Phone
0466069470
Student Email
heineken.schweppes@gmail.com
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: ___________________________________________
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
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Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR122 Unit Title: Diagnose and repair vehicle dynamic control systems
For this assessment you are required to answer all of the questions. You are permitted to research the answers by reading the learner guide, text books, theory notes and accessing the internet. If more room is needed label each task with the question number and use headings or dot points to make your work clear for your trainer and assessor. Please follow the Referencing Guide
contained on your Course handbook. Please attach a student assessment cover sheet
to each unit submission. You must complete the cover sheet in full detail.
1.
Where can you find the information required in the table below? Item
Location
Three (3) examples
Content
Three (3) examples
Workplace procedures related to diagnosis and repair of vehicle dynamic control systems?
Owner manual
Service history
Internet
Ways of operation
Workplace Safety
Manufacturer specification
Manufacturer specifications related diagnosis and repair of vehicle dynamic control systems?
Owner manual
Service history
Internet
Vehicle’s information
Ways of operation
Workplace safety
2.
Where can you find the information provided by the customer or your supervisor that you will need for diagnosing and repairing vehicle dynamic control systems? Give three (3) examples.
Service history
Job card
Manufacturer specification
Internet
3.
List three (3) methods you can use to locate the required information to diagnose and repair the vehicle dynamic control systems
.
Internet
Manufacturer specification
Job card
internet
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Assessment Questions
Part A
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4.
Explain the workplace procedures required to diagnosis and repair a vehicle dynamic control system, listed in the table below.
Establish serviceability of tools and equipment.
Testing before using including visible damaged voltage test. Always
clean tools and equipment up and put it back where it from after using.
Documentation procedures
Record if fault or any issues after using. Calculate amount of electronic components in workshop. Check date of last maintenance.
Follow privacy protocols.
Store documentation appropriately.
Record keeping documents what you’re doing to maintain and improve your working environment and health and safety. Keeping records can help you track your business' health and safety performance, as well as satisfy the legal requirements.
5.
Describe the housekeeping procedures required when diagnosing and repairing vehicle dynamic control systems, listed in the table below.
Examination of tools and equipment
Test before using. Always clean tools and equipment up and put it back where it from after using.
Don’t use the wrong tool, or by using the right tool in the wrong way
Never try to modify or improvise if you don't have the right tool or
equipment. Choose the correct tool will also decrease the effort required without causing damage to either the equipment or the surface being worked on.
Storage and examination of equipment procedures
Store all equipment locate corrected place.
Class Models, methods and size clearly.
For next people use convenient.
Identification, tagging and isolation of faulty equipment
procedures
Check condition of equipment. Tag if fault or any issues. Isolate with different models in a specific area. Disconnect power.
Safe disposal of excess material procedures
Keep lids on your bins or store them in a covered zone to prevent the wind from blowing waste away.
Avoid storing waste bins on footpaths or possessions belonging to others.
Separate different kinds of waste for a relaxed collection and /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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recycling.
Use a liquid waste contractor to dispose of spent chemicals and other liquid waste. Do not put liquid wastes, such as oily shreds or filters, into your waste bins.
Sometimes engine blocks and other working parts like water pumps, starter motors and alternators can re-manufactured and be given a second life saving more rubbish from our landfill. Recycling procedures
Follow manufacture specification to storage where it should storage. Class Models, methods and size clearly. Locate in proper recycle bin.
6.
Describe the following Workplace Health and Safety requirements for the items listed in the table below.
Using specialised tools and equipment.
List two (2)
1. Physical inspection: Fits size and without damaged.
2. Finding tools or equipment by manufacture specification.
Using appropriate personal protective equipment (PPE).
List four (4)
1. Rubber gloves : Avoid electric shock to skin directly. Rubber is an insulator.
2. Safety boots : Disconnect earth from ground cause conductive.
3. Safety suits : Avoid electric shock to skin directly.
4. Safety glasses : Avoid splash dusts.
5. Sun glasses : Avoid harmful flash.
Identifying hazards and controlling risks associated with working on vehicles with high and low voltage ignition systems.
List three (3)
1. Use proper PPE
2. If you are using a volt/ohmmeter to check resistances on an ignition system, make sure the circuit has been disconnected and the ignition system is off. 3. When testing any ignition system, always follow the manufacturer’s suggested diagnosis and service procedure.
Identifying hazards and controlling risks associated with wearing jewellery while working around high current wiring systems.
Identified Hazards
List two (2)
Associated Risks
List four (4)
Conduct electronic
Chemical get into jewellery
Skin Burned
Hard to take off while accident occur
Irritating the skin
metal jewelry can damage the equipment
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7.
Describe the operating principles of the following vehicle dynamic control systems and associated components listed in the table below.
Active roll over protection
Active rollover protection is a system which prevents a vehicle from rolling over from excessive lateral force.
There are two ways to control this:
1 Electronic stability program (ESP). Comprising traction control, anti-lock braking and yaw control.
2 Active suspension. Adjusts the suspension if the yaw sensor detects a possible rollover.
Anti-lock braking
ABS works by releasing and then reapplying or 'pumping' the brakes to a motorcycle wheel or car wheels in heavy braking situations. Sensors on each wheel are used to detect 'locking' or when a wheel stops moving and starts to skid.
Brake assist
Brake assist is a passive safety technology, meaning the driver does not actively apply it. These systems automatically kick in whenever extra brake force is deemed necessary to prevent an accident. Brake assist kicks in when a driver applies their brakes suddenly and with a great deal of force.
Descent control
The hill descent control (HDC) system allows a controlled hill descent in rough terrain without the driver needing to touch the brake pedal. With the system on, the vehicle will descend using the ABS braking system to control each wheel speed through sensor input. If the vehicle accelerates without driver input, the system will automatically apply the brakes to slow down to the desired vehicle speed. Control buttons can adjust the speed to a comfortable level. Applying pressure to the accelerator or brake pedal will override the HDC system.
Electronic brake force distribution
Electronic brake-force distribution occurs ahead of anti-lock braking. Its electronic program operates the inlet valves to the rear
brakes. The valves will be opened and closed, as required, to control the fluid pressure applied to the rear wheels.
EBD uses its computer program to operate the ABS components. The anti-lock braking function of the ABS will not be in operation (it will only come into operation if required for the particular driving or braking conditions).
Electronic park brake On vehicles with an electronic parking brake (EPB), the electronic control unit operates the parking brake.
Some systems apply and release with a driver-applied button. Others utilise sensors which have the ability to apply automatically
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when the vehicle comes to a full stop. Sensors can also provide incline detection, backward motion detection, boot, bonnet or doors being opened and the driver's seatbelt not being latched.
From the driver's seat, the EPB can only be released when the brake pedal is being pressed. It also can be used as an emergency brake and as a hill start assist. With the vehicle stopped and the brake pedal pressed, pulling the EPB switch applies the parking brake.
The driver can release the switch and brake pedal, and the EPB will
release automatically when the accelerator is pressed.
Hill-start assist Hill-start assist prevents the vehicle from rolling backwards when starting on an uphill slope by maintaining the brake pressure while
the driver shifts from the brake to the accelerator pedal. This can be performed by either the ESP or EPB.
Stability control The electronic stability program (ESP) is an active safety system. It uses additional electronic controls to operate the brakes, in conjunction with ABS, to provide vehicle stability. This is applied particularly during cornering. ABS senses the need to apply or release the brakes on each wheel independently and ESP makes use of this facility.
A brief comparison of an electronic stability program (ESP) with the other systems is: the anti-lock braking system (ABS) prevents the wheels from locking and skidding; the traction control system (TCS)
prevents the wheels from spinning and the electronic stability program (ESP) provides steering stability.
ESP can stabilise steering by intervention in two different ways: by braking selected wheels, or by accelerating the driving wheels. This helps to keep the vehicle stable on the road.
Traction control
Traction control operates by reducing engine torque, and this reduces traction between the tyres and the road. It can also use ABS to apply the brakes to reduce wheel spin.
Engine torque can be decreased in three ways:
1 By reducing or cutting off fuel from the injectors.
2 By retarding the ignition.
3 By closing the throttle valve.
Where traction control is fitted, the ABS electronic control unit has
extra programming for traction control and often extra valves in /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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the modulator.
When driving conditions are such that traction control is needed, the ABS/TC electronic control unit sends a signal to the engine PCM, telling it to reduce engine torque. The engine ECU then reduces the fuel from the injectors, retards the ignition or, in some
systems, closes the throttle valve.
Active and passive collision avoidance
Active safety features prevent accidents from happening. Passive safety features lessen the chance of death and serious injury in instances where an accident is unavoidable.
Active: Adaptive Cruise Control: More preventative than reactive, these systems use radar or lasers to adjust your cruise control speed via throttle to maintain an appropriate distance from the vehicle in front of you.
Automatic Emergency Braking (AEB): Brakes are automatically applied based on feedback from sensors in order to prevent a collision or minimize collision speed
Rear Automatic Emergency Braking: Brakes are automatically applied to prevent the vehicle from backing into an object using a cross-traffic monitoring system or sensors like radar or lasers.
Passive:
Electronic Stability Control (ESC): An extension of antilock brake technology, ESC automatically applies your brakes to help steer the
car appropriately during a loss of traction. An onboard computer monitors various sensors to determine which wheels to brake and which to accelerate.
Parking Assist: Feedback from ca
Lane keeping assist
Lane keeping assist uses a video camera to detect the lane markings ahead of the vehicle and to monitor the vehicle's position in its lane. If the vehicle's distance to the lane markings falls below a defined minimum, the system steps in.
Occupant detection systems
The Occupant Detection System, or ODS, is an important safety system that detects the presence of a child, infant or small adult in
the front passenger seat, and for their safety suppresses airbag deployment.
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Adaptive cruise control
Adaptive Cruise Control: More preventative than reactive, these systems use radar or lasers to adjust your cruise control speed via throttle to maintain an appropriate distance from the vehicle in front of you.
Roll-over protection. Rollover protection system is a system or structure mean to protect equipment operators and motorists from injuries caused by vehicle overturns or rollovers. Like roll cages and roll bars in cars and trucks, a ROPS involves bars attached to the frame that maintain a space for the operator's body in the event of rollover.
8.
Describe the purpose and operation of vehicle dynamic control systems and components listed in
the table below.
ABS, including system inputs,
electronic control unit (ECU),
ABS modulator and system outputs.
ABS is a system that modulates brake pressure in an emergency stop to keep the wheels from locking up. This allows the driver to maintain control of the steering wheel and stop the car as quickly as possible.
How it works:
1. Brake pedal is pushed
2. Wheel sensors detect skidding or 'locking'
3. ABS pumps the brakes
TCS, including system inputs,
electronic control unit (ECI), ABS modulator and system outputs including associated throttle and braking system controls.
The anti-lock braking system can operate in conjunction with traction control. With ABS, the hydraulic modulator uses its internal hydraulic pump to boost or reduce the master cylinder pressure.
For traction control at lower speeds, hydraulic pressure from the pump is used without the driver applying the brakes. The ABS/TCS electronic control unit processes inputs from the wheel sensors
and applies a brake when needed. The ABS/TCS hydraulic modulator has extra valves for traction control. These are the priming and switching valves. They are opened and closed by the ECU to control the brake fluid flowing to and from the master cylinder.
Electronic throttle control, or drive by wire, is a device that can be used with traction control. This does away with the conventional throttle linkage or cable.
The accelerator pedal is connected to an electronic sensor which signals the throttle position to the engine ECU (or PCM). The engine ECU then operates a servo motor connected to the throttle
valve. For normal operation, when traction control is not working, /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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signals pass through the engine ECU and the servo motor opens the throttle valve in proportion to accelerator pedal movement.
With the traction control in operation, the engine ECU takes into account signals from the anti-lock braking system/traction control ECU and adjusts the throttle valve opening accordingly.
Electronic stability control (ESC). Including system inputs, including yaw and steering angle sensors, and ECU and system outputs, including associated throttle and braking system controls.
Electronic stability control works by manipulating both the engine throttle and each wheel's brake. Similar to other driver aids, ESC turns on when you start your car. It operates in the background as it monitors steering wheel activity along with speed sensors on each wheel.
9.
Describe the testing procedures for vehicle dynamic control systems including accessing and interpreting scan tool system data as listed in the table below.
Diagnostic trouble codes (DTC)
DTC is a code used to diagnose malfunctions in a vehicle or heavy equipment. DTC identifies what and where the issue is.
Waveforms
Determine any issues according to waveforms.
Unstable waveform means abnormal and vice versa.
Live Data
Live data refers to reading information as it is being produced. This can be given in a numeric value or as a graph on a screen.
10.
Describe the testing procedure for vehicle dynamic control system including using flow charts.
Test vehicle dynamic system by OBD II scan tools.
1. Plug in vehicle.
2. Select vehicle information.
3. Select option which you want to check.
4. Follow scan tool’s actions to diagnose.
5. Find DTCs and clear.
6. Retest again.
7. Replace or repair if DTC not could be clear.
8. Recheck again.
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11.
Describe the testing procedures for vehicle dynamic control systems listed in the table below.
Accessing electrical terminals and using probes without damaging connectors, fuse holders or wiring
Although many low-cost test lights come with pointed probes, never use them to pierce the insulation of wiring systems as this can cause wiring to corrode. The probe is there to allow you to 'back probe' connecting plugs.
There may be more than 50 different types of connecting plugs used on one vehicle. They will vary in terms of the number of wires they can accommodate, be of different colours to assist in identification and be waterproof or not waterproof. For this reason, consulting manufacturers' wiring information is vital when diagnosing system problems.
Each manufacturer will provide details on how to remove the connecting pins from the plugs and how to disconnect the male from the female connecting plug.
Many of the modern connecting plugs used in automotive applications will require special tools to remove the male and female pins. Each connecting pin has a locking mechanism to hold it in the plug body and a special tool is required to release the locking pins.
Determining damage to system wiring and connectors
The correct way to test circuits with a multimeter when tracing a wiring system is to "back probe' at the plugs. This can be very difficult with waterproof plugs. To back probe a plug, it is best to use a fine metal probe. If such a probe is not available, use a large straightened paper clip to probe from the back of the connector past the rubber seal. Care must be taken to not damage any seals.
12.
Describe the repair procedures for vehicle dynamic control systems, including those in the table below.
Connector removal and replacement procedure
Power off first.
Each connecting pin has a locking mechanism to hold it in the plug body and a special tool is required to release the locking pins.
Ensure pin in correct plug without damage.
Ensure connect properly not loosen.
Removal and replacement procedures for vehicle dynamic control system components
Removal
1. Turn the ignition switch to the OFF position. Apply the parking brake.
2. Place blocks under the front and rear tires to prevent the vehicle from moving.
3. If necessary, raise the vehicle off the ground and place safety stands under the vehicle.
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4. Disconnect the wiring harness connector from the ESC module.
5. Remove the two mounting cap screws and nuts. Remove the ESC module
Replacement
1. Install the ESC module with the two cap screws and nuts. Tighten the cap screws per the manufacturer's recommendation.
2. Connect the wiring harness connector to the ESC module. Hand tighten only.
3. Remove the stands and blocks.
4. Test the installation.
Calibration and resetting procedures
- After replacing parts, check all of the mounting nuts and bolts to ensure that they are all correctly tightened. It could save you and your customer a lot of time and money.
- Inspect the vehicle for any clues. If you see any damage, cracks, and broken boots or if something just does not look right, it may need to be serviced and replaced. - Torque: The replacement of engine parts should be torqued according to the manufacturers’ specifications. If these are not adhered to, the loose assembly may result in poor handling and performance. You can compare the procedure used to the torque specifications they provide for your car.
Checking the ABV Installation
Checking the ABS Valve Installation
Testing the ECU, SAS Installation
Testing the ESC module Installation
To test the brake pressure sensor
Before road test: Wheel Speed Sensors
ABS Power & Ground Connections
Steering Wheel Angle Neutral Position setting (VDC / ESP only)
Calibration of Decel G Sensor
Correct Adjustment / Setting of Brake Pedal & Brake Pedal Switches
Gear Position Inputs
Road test
13.
Describe the post repair procedures for vehicle dynamic control systems including those listed in the table below
DTC Clearance procedures
The only way to clear a PDTC is to fix the underlying problem with the vehicle that originally caused the PDTC and its corresponding DTC to set, and then allow the vehicle sufficient drive time to re-
run the monitor that identified the problem in the first place.
Check, record and clear DTCs
Check systems and confirm they are functioning correctly
Check that the key is initialised to the systems if required
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Check for any DTCs after testing all functions
Check the vehicle for cleanliness
Checking for electrical connector mating
When checking electrical connectors for mating, make sure that the retaining device has latched properly so that the connector cannot come apart. If there is any doubt that the connecting pins are making proper connection, carry out a resistance test by back-
probing the plug from each side while wriggling the connector plug to check for poor fitting pins.
Many electrical faults are caused by bad earth connections. Technical manuals will show the location of earth connections on a
particular vehicle. Earth connections to the body are not generally waterproof and thus can cause a fault through rust or corrosion.
Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR122
Unit Name
Diagnose and repair vehicle
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Student Assessment Cover Sheet
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dynamic control systems
Due Date: 20/04/22
Assessment Name
Automotive Portfolio
Part B: Practical Assessment
Student No
.
0003000193
Student Name
Wei-Hsiang Lin
Student Phone
0466069470
Student Email
heineken.schweppes@gmail.com
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: ___________________________________________
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR122 Unit Title: Diagnose and repair vehicle dynamic control systems
You are working in an automotive workshop. Two (2) clients have brought in two (2) different vehicles that require diagnosis and repairs to the vehicle’s dynamic control systems. Each vehicle or machinery will have a different fault.
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Practical Assessment
Part B
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Your task is to diagnose and repair a fault that can be in any of the following dynamic control systems:
one vehicle or machinery with an anti-lock braking system (ABS)
one vehicle or machinery with a traction control system (TCS)
one vehicle or machinery with an active safety system.
You are also required to carry out diagnostic tests in the course of the above for at least one of the following faults:
high resistance in an input system
worn or damaged wiring or connectors
shorted system components.
Your assessor will be acting as your supervisor and delegate work to you.
The work will be delegated to you from your supervisor (trainer/assessor) as per the activities listed in this assessment task. The description of the activities is mentioned below. Your trainer/assessor will observe you when you are completing the activities and evaluate your performance based on benchmarking in the performance checklists.
Your trainer/assessor will advise you which complex fault you will be required to diagnose for this assessment task and on which vehicle dynamic control systems you are to make the diagnosis.
The fault will be different on each vehicle.
After each activity, you will find a Performance Checklist. The list outlines the tasks you need to perform, and your supervisor (your assessor) will observe. These assessment tasks are given to you as repair orders.
You need to:
Determine the job requirements according to your customer and or supervisor’s instructions.
Access and interpret the technical procedures and information for the diagnosis and repair.
Analyse the diagnostic options and source your testing strategy to identify the cause of fault by using workplace and manufacturer procedures.
Identify hazards and environmental issues associated with the work, implement control measures and manage risks.
Select and check tools, equipment, and materials for serviceability.
Implement diagnostic tests set out in a testing strategy according to manufacturer and workplace procedures and WHS requirements.
Identify faults from the test results and determine the causes of the faults.
Confirm and report fault according to workplace procedures.
Develop and report recommendations for repairs.
Find the information you need for the repair activities.
Collect the tools, equipment and materials you need for the repairs and check for serviceability.
Carry out the repairs according to workplace and manufacturer procedures and specifications. and work, health and safety and environmental requirements.
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Carry out post-repair testing according to workplace procedures to confirm fault rectification and detect and rectify any further problems detected or introduced during the repair or fabrication process.
Make final inspection to ensure work is to workplace expectations and present systems ready for use.
Clean the work area, dispose of waste and non-recyclable materials, and collect recycled material.
Check and store tools and equipment and identify, tag and isolate any faulty electrical equipment according to workplace procedures.
Process workplace documentation according to workplace procedures
You need to read the supervisor’s instruction on the repair order underneath, discuss the tasks listed with your supervisor for clarification and fill the vehicle’s details and other information on top of the repair order before starting the work.
You must also fill out the following documents:
The Testing Strategy Template to outline the test strategy you are going to use.
The Preliminary Inspection Report to record the outcomes of your testing.
The Post-Repair testing template to confirm the status of the instrument and warning systems, if a final inspection has been completed, systems presented ready for use, tools checked and stored, and all workplace documentation processed.
Finalise the information on the Repair Order.
Activity 1 – Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name: ABCD Motors
Repair Order 1
Address: 22 Spring Grove Sunshine
Date: Phone: 7125 2356
ABN#: 923 556 412
Technician’s Name: Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Vehicle details
Make: Model: /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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Contact number:
1234343
Customer’s declaration: By signing this repair
order, I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost. Signature:
Year: Colour: I.D. Number #: Vehicle Chassis #: ODO/Millage: Concern:
Cause: Recommendation: Rectification/Repair:
Parts used (if any) and quantity: Testing Strategy Template Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
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Selected Testing Strategy
Reason for Testing Strategy selection
Source (s) of Diagnostic process
Preliminary Inspection Report
Date: Time:
Vehicle Identification number: Odometer reading: Last service date: Preliminary inspection conducted by: Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
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Post-Repair Testing Date:
Vehicle Identification Number: Odometer reading: Vehicle owner’s name and address: Fred Barley Ashmore Gold Coast
Technician name:
Tech number: Problem reported: Action taken: Visual inspection comments: Type of post-service testing carried out: Remarks/Comments
Final inspection carried out vehicle presented ready for use: YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date: Your Assessor will observe you and complete the following checklist. All task criteria must be satisfactorily demonstrated.
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Practical Observation Checklist
Your task must address the following performance checklist. To be assessed as satisfactory (S) in
this
assessment
task
the
participant needs to demonstrate
competency in the following critical
aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
Prepare to diagnose and repair the vehicle ignition systems
Job requirements were determined according to workplace instructions
Clarify instructions
Obtain information from customers and supervisors
Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures.
Accessed technical information required and interpreted it for diagnosis and repair.
Develop a sequenced plan for the task
Accessed safe operating procedures required and interpreted them for equipment.
Identified any hazards associated with the work
Identified
hazards
and
managed the risks
Follow procedures for using specialised tools and equipment
Use appropriate personal protective equipment (PPE)
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Identify tools and equipment required for testing strategy and establish serviceability
Diagnose and repair the vehicle ignition systems
Inspect damage to the vehicles ignition systems
Plan own work requirements
Correctly use specialised diagnostic equipment
Appropriately use tools and fault-finding techniques for testing the systems according to workplace procedures and safety and environmental requirements, and without causing damage to components or systems
Compare inspection and test
results with manufacturer specifications
Identify faults from test results and causes of faults are determined
Follow workplace procedures with regards to confirmation and reporting
Dismantling and removal of vehicle ignition
Labelling of components before removal
Removal of components according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
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systems
components for
testing purposes
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Interpretation of testing results and recommendations based on test results
Access and interpret scan data from manufacturer and
component supplier specifications
Use appropriate techniques for conducting test and evaluation tasks according to workplace procedures
The refitting of tested components and reconnection according to manufacturer and component supplier specifications
Carry out post-repair testing according to workplace procedures to confirm fault, and how to rectify any further problems detected as having been introduced during the repair or fabrication process
Refit components removed for testing purposes and test the vehicle ignition
Final inspection is made to ensure work completed is to
expectation and the vehicle ignition systems is presented
to the customer ready for use
Cleaning the work area including disposal of waste and non-recyclable materials, and recycling of other materials
Check and store tools and equipment
How any faulty equipment is
identified, tagged and isolated
What workplace documentation needs to be processed
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s
y
s
t
em
s
fo
r
o
p
e
r
a
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Complete work processes
Final inspection is conducted and the vehicle is
presented to the customer ready for use
Process of cleaning the work
area including disposal of waste and non-recyclable materials, and recycling of other materials.
Checking and storing tools and equipment.
Remove tools used
Remove waste
Sort and remove recyclables and non-recyclables
Workplace documentation needs to be processed
Legibly complete all templates
Complete all documentation
required
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Activity 2 – Your Trainer/Assessor will select the type of vehicle to be diagnosed and repaired and
with additional diagnostic test to be completed.
Business Name: ABCD Motors
Repair Order 2
Address: 22 Spring Grove Sunshine
Date: Phone: 7125 2356
ABN#: 923 556 412
Technician’s Name: Technician’ signature:
Customer’s details
Full name: Fred Barley
Address: Ashmore Gold Coast
Contact number: 1234343
Customer’s declaration: By signing this repair
order, I give my consent to ABCD automotive to
test and repair the basic electrical circuits at my
cost. Signature:
Vehicle details
Make: Model: Year: Colour: I.D. Number #: Vehicle Chassis #: ODO/Millage: Concern:
Cause: Recommendation: Rectification/Repair:
Parts used (if any) and quantity: Testing Strategy Template /var/filecabinet/temp/converter_assets/32/3c/323c2e08502a15722d53e6ada32e00ee471661d2.docx
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Develop a testing strategy to diagnose the cause of the fault in the selected vehicle.
Reported fault
Selected Testing Strategy
Reason for Testing Strategy selection
Source (s) of Diagnostic process
Preliminary Inspection Report
Date: Time:
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Vehicle Identification number: Odometer reading: Last service date: Preliminary inspection conducted by: Job assigned to mechanic:
Steps No
Inspection
Result/Findings
Manufacturer
Specification
Recommendations
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Post-Repair Testing Date:
Vehicle Registration: Odometer reading: Vehicle owner’s name and address: Fred Barley Ashmore Gold Coast
Technician name:
Tech number: Problem reported: Action taken: Visual inspection comments: Type of post-service testing carried out: Remarks/Comments
Final inspection carried out vehicle presented ready for use: YES/NO
Work area cleaned, waste and non-recyclable material disposed of and recyclable material
collected
YES/NO
Tools and equipment checked and stored
YES/NO
Workplace documentation processed and completed
YES/NO
Technician Signature Date: Your Assessor will observe you and complete the following checklist. All task criteria must be satisfactorily demonstrated.
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Practical Observation Checklist
Your task must address the following performance checklist. To be assessed as satisfactory (S) in
this
assessment
task
the
participant needs to demonstrate
competency in the following critical
aspects of evidence.
Did the student:
S
N/
S
Trainer/Assessor to complete
(Comment and feedback to students)
Prepare to diagnose and repair the vehicle ignition systems
Job requirements were determined according to workplace instructions
Clarify instructions
Obtain information from customers and supervisors
Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures.
Accessed technical information required and interpreted it for diagnosis and repair.
Develop a sequenced plan for the task
Accessed safe operating procedures required and interpreted them for equipment.
Identified any hazards associated with the work
Identified
hazards
and
managed the risks
Follow procedures for using specialised tools and equipment
Use appropriate personal protective equipment (PPE)
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Identify tools and equipment required for testing strategy and establish serviceability
Diagnose and repair the vehicle ignition systems
Inspect damage to the vehicles ignition systems
Plan own work requirements
Correctly use specialised diagnostic equipment
Appropriately use tools and fault-finding techniques for testing the systems according to workplace procedures and safety and environmental requirements, and without causing damage to components or systems
Compare inspection and test
results with manufacturer specifications
Identify faults from test results and causes of faults are determined
Follow workplace procedures with regards to confirmation and reporting
Dismantling and removal of vehicle ignition systems
Labelling of components before removal
Removal of components according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
Securing pipes and hoses to remove risk of contamination
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components for testing
purposes
Interpretation of testing results and recommendations based on test results
Access and interpret scan data from manufacturer and
component supplier specifications
Use appropriate techniques for conducting test and evaluation tasks according to workplace procedures
The refitting of tested components and reconnection according to manufacturer and component supplier specifications
Carry out post-repair testing according to workplace procedures to confirm fault, and how to rectify any further problems detected as having been introduced during the repair or fabrication process
Refit components removed for testing
Final inspection is made to ensure work completed is to
expectation and the vehicle ignition systems is presented
to the customer ready for use
Cleaning the work area including disposal of waste and non-recyclable materials, and recycling of other materials
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purposes and test the vehicle ignition systems for operation and
Check and store tools and equipment
How any faulty equipment is
identified, tagged and isolated
What workplace documentation needs to be processed
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Complete work processes
Final inspection is conducted and the vehicle is
presented to the customer ready for use
Process of cleaning the work
area including disposal of waste and non-recyclable materials, and recycling of other materials.
Checking and storing tools and equipment.
Remove tools used
Remove waste
Sort and remove recyclables and non-recyclables
Workplace documentation needs to be processed
Legibly complete all templates
Complete all documentation
required
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Student Name: Unit: AURETR112 Test and repair basic electrical circuits Assessment
Satisfactory (S) / Not Yet Satisfactory (NYS)
Date
Comment
Initial
s
Questions
Practical Feedback from the Student:
I have been provided with feedback on this assessment from the assessor for this unit
Student Signature:
Overall competency has been achieved: YES □ NO □
□
Assessment submitted past end date
Assessor’s Name: Result Date : Assessor’s Signature:
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Student Assessment Feedback Form
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Course Code
AUR30620
Course Name
Certificate III in Light Vehicle Mechanical Technology
Unit Code
AURETR112
Unit Name
Test and repair basic electrical circuits
Due Date
Assessment Name
Automotive Portfolio
Part A: Short answer questions
Student No
.
0003010829
Student Name
Leonardo Augusto Marchezani
Student Phone
0449 968 214
Student Email
leo.marchezani@gmail.com
Student Declaration
I declare that this assessment is my own work and where my work is supported by documents from my workplace placement/employer permission has been granted.
Note: Filling out this coversheet as part of an electronic submission and approving the above information will operate in the same way as physically signing this cover sheet.
Student name or signature: Leonardo Augusto Marchezani
Office Use Only
Date/s Received:
___/___/___
___/___/___
___/___/___
Date/s Assessed:
___/___/___
___/___/___
___/___/___
Result of Assessment:
___________
___________
___________
Entered on Training Plan
Moderation
Signature
Note for Assessors:
Filling out the above Office Use Only section as part of an electronic submission will operate in the same way as physically signing this cover sheet. If not physically signed, Assessor must print their name in signature box
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Student Assessment Cover Sheet
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Course Code and Name: AUR30620 Certificate III in Light Vehicle Mechanical Technology
Unit Code:
AURETR112
Unit Title: Test and repair basic electrical circuits
For this assessment you are required to answer all of the questions. You are permitted to research the answers by reading the learner guide, text books, theory notes and accessing the internet. If more room is needed label each task with the question number and use headings or dot points to make your work clear for your trainer and assessor. Please follow the Referencing Guide
contained on your Course handbook. Please attach a student assessment cover sheet
to each unit submission. You must complete the cover sheet in full detail.
1.
Where can you find the information required in the table below? Item
Location
Three (3) examples
Information
Three (3) examples
Workplace procedures related to a test and repair basic electrical circuits
Workplace’s standards procedures
Training materials
Tool manuals provided by tool manufacturer
Correct procedures
Correct handling
Safety and emergency procedures
Manufacturer specifications related to a test and repair basic electrical circuits
Manufacturer’s official manuals (equipment or vehicle)
Manufacturer’s technical documentation
Manufacture’s supplier
Specific equipment manual
Specific vehicle manual
Specific parts information
2.
Where can you find the information provided by the customer or your supervisor that you will need to test and repair basic electrical circuits? Give three (3) examples.
Job card
Directly with the customer
Directly with the supervisor
3.
List three (3) methods you can use to locate the required information to test and repair basic electrical circuits.
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Assessment Questions
Part A
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Manufacturer’s manual
Official websites
Workplace training materials
4.
With regards to testing and repairing basic electrical circuits:
a)
List the three (3) main circuit types.
Series, parallel, and series-parallel circuit
b)
List the two (2) types of circuit connections.
Series, and parallel connections
c)
What is a circuit diagram and what are the two (2) different types?
It’s an electrical circuit represented as an image, showing its components and connections.
The types are schematic diagrams and wiring diagrams
d)
What are circuit symbols?
Graphic representation used in circuit diagrams to represent electrical components. Like the zigzag that represents the resistor
e)
List three (3) examples of where you can find the information you need to test and repair a circuit. Manufacture’s manual, technical books, online websites
5.
Explain the workplace procedures in the table below required to develop and carry out a test and
repair a basic electrical circuits.
Establish serviceability of tools and equipment.
Ensure that all tools are working properly.
For example, touch the metal ends of a multimeter to test it
Documentation procedures
Record all documentation of tests and repair process, including notes and actions taken, and results
6.
Describe the housekeeping procedures required when developing and carrying out a test and repair basic electrical circuits from the items listed in the table below. Examination of tools and equipment.
Regularly inspect, clean, and keep maintenance of tools and equipment
Storage of equipment procedures
Store equipment in designated and labelled areas
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Identification, tagging and isolation of faulty equipment
procedures.
Clearly mark, tag, and isolate faulty equipment
Safe disposal of excess material procedures
Dispose according to workplace guidelines and material
Recycling procedures
Follow recycling guidelines to prevent environmental contamination
7.
List three (3) workplace health and safety requirements for each of the items in the table below associated with testing and repairing of basic electrical circuits.
Using specialised tools and equipment
Remove jewerly
Carefully handling equipment
Well-ventilated and open area
Using appropriate personal protective equipment (PPE)
Safety glasses
Safety boots
Gloves
8.
Identify the hazards and risks associated with wearing jewellery while working around electrical systems.
Hazards
List two (2)
Risks
List four (4)
Hazards and controlling risks associated with wearing jewellery while working around electrical systems
Hook and stick on the engine
Electric conductor
Electric shock
Hook and stick on the engine
Machinery accident on moving parts
Burns
9.
Identify the environmental procedures related to testing and repairing basic electrical circuits. List three (3).
Waste disposal
Recycling
Hazardous material handling
10.
Describe the basic theory and principle of the automotive electrical systems listed in the table below. /var/filecabinet/temp/converter_assets/99/d6/99d6990b4b92328153e63f7ca6a125b1e5705aa5.docx
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Alternating Current (AC)
Is an electrical current that changes direction. Used in alternators to generate electrical power for charging the battery and power to vehicle accessories
Direct current (DC)
Is an electrical current that flows in one direction. Is a steady and smooth flow to power various electrical components.
Voltage
Represents the electrical potential difference between two points in a circuit, measured in volts (V).
Resistance
Is the opposition to the flow of electrical current. A component in an electrical current that affects the flow of the current through diverse components, as resistors, sensors, and wires.
Measured in ohms (Ω)
Power
Power is the rate at which electrical energy is used or produced in a circuit. Measured in watts (W).
Ohm’s law
Relates the fundamental electrical quantities of voltage (V), current (I), and resistance (R). It states that V = I*R
Can be used to find the last value when you have 2 of them in a circuit
11.
Identify and describe the operation of the electrical circuits listed in the table below.
Series circuit
In a series circuit the same current flows through all components. If one component fails or is disconnected, the entire circuit is interrupted, affecting all components in the series.
Parallel circuit
In a parallel circuit, each component has its own branch to the power source. This configuration ensures that if one component fails or is disconnected, the other components remain unaffected and operational. Most automotive circuits are designed in a parallel arrangement to maintain reliability.
Series parallel circuits
Series-parallel circuits combine aspects of both series and parallel configurations. Components are grouped in series and then these series groups are connected in parallel. This design offers some redundancy while still providing control over individual components. Automotive wiring harnesses often employ series-
parallel circuit arrangements to optimize the balance between reliability and complexity.
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12.
Describe the key features of the basic electrical circuit components, listed in the table below.
Cable types
Battery cables are thick and can handle high currents, and signal wires for low-power applications. Cable types can be categorized by their insulation materials and wire gauge.
Cable sizes
Cable sizes are determined by the wire gauge, typically measured in American Wire Gauge (AWG) or mm². Larger cable sizes have a higher current-carrying capacity and are used for applications requiring greater power delivery.
Current carrying capacity.
The current carrying capacity of a cable is the maximum amount of
electrical current it can safely handle without overheating. It depends on the cable's size and material. Cables with higher current-carrying capacities are used for power-hungry components
like starters.
Circuit protection devices
Circuit protection devices are designed to prevent electrical circuits from overheating or overloading. Examples include fuses and circuit breakers. They interrupt the circuit if the current exceeds a safe limit, protecting the components and preventing fires.
Switches
Switches are used to open or close an electrical circuit, controlling the flow of current. They are used for a wide range of applications,
such as lights, fans, and ignition systems.
Relays
Relays are electromagnetic switches that allow a small current to control a larger current in a circuit, used to control high-current components like starter motors and headlights. Relays are essential for preventing excessive current flow through switches and wiring.
Automotive globes
Automotive globes, provide illumination for various parts of the vehicle, such as headlights, taillights, and indicator lights.
13.
Describe the procedures for using and operating the electrical test equipment, listed in the table below.
Digital multimeters
Select the appropriate function (voltage, current, resistance) and range. Connect the test leads to the circuit being tested, ensuring the correct polarity. Read the displayed values, which can be used to diagnose electrical issues.
Test lights suitable for circuit testing, including resistive and light emitting diode (LED)
Test lights with resistive bulbs or LEDs can check for voltage and circuit continuity. Connect the test light to a circuit, and the light will illuminate if voltage or continuity is present.
Test probes suitable for testing circuit continuity
Test probes are used to check for circuit continuity by connecting the probe tips to different points in a circuit. An audible tone or visual indication confirms continuity.
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Fused test lead
Fused test leads are equipped with fuses to protect the multimeter and the technician in case of overloads or short circuits. When testing, ensure the correct range and connection, and the fuse will blow if the current exceeds the safety limit.
14.
Describe and explain the types of common faults listed in the table below.
Open circuit
An open circuit is when there is a break in the electrical path, preventing current flow. It can result from a disconnected wire, a blown fuse, or a faulty component.
High resistance circuits
High resistance circuits have elevated resistance due to corroded connectors, poor-quality cables, or damaged wire insulation. These issues impede current flow and can lead to overheating.
Short circuits
A short circuit happens when two conductors with different voltages come into contact. This results in excessive current flow and can lead to fires or component damage.
Damaged insulation
Damaged insulation occurs when the protective covering around wires or cables is compromised. It can expose conductors, increasing the risk of short circuits and electrical hazards.
Frayed wiring
Frayed wiring refers to wires with damaged or worn-out insulation,
often caused by mechanical wear and tear. It can lead to short circuits and compromised electrical connections.
Burnt wiring
Burnt wiring occurs when wires or cables overheat due to excessive current flow or poor connections. It can cause fires and component damage if not addressed promptly.
Water and moisture ingress
Water or moisture entering electrical circuits can cause corrosion, short circuits, and reduced insulation effectiveness. It is especially problematic in bad sealed parts
Connector damage
Connector damage may result from physical stress or corrosion. It can lead to bad electrical connections and malfunction.
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Terminal damage
Terminals can become damaged due to factors like over-
tightening, corrosion, or excessive current. Damaged terminals may not provide a secure connection, resulting in voltage drop or overheating.
15.
Describe the testing procedures for accessing electrical terminals and using test probes correctly.
Safety Precautions: Before testing any electrical circuits, ensure the vehicle's ignition is off and the battery is disconnected. Use personal protective equipment (PPE), including safety glasses and insulated gloves.
Visual Inspection: Examine the electrical terminals, wires, and connectors for visible damage, corrosion, or loose connections.
Selecting the Right Test Probe: Choose the appropriate test probe for the task. Ensure the probe's insulation is intact and in good condition.
Identifying the Correct Terminal: Identify the terminal you need to test.
Connection: Connect the test probe to the electrical terminal or connector. Ensure a secure connection.
Insulation Check: Verify that the test probe's insulation covers the metal part of the probe entirely. This step is crucial to prevent accidental short circuits or electrical shock.
Testing: Depending on the testing required (voltage, resistance, continuity, etc.), set the multimeter to the appropriate range. For voltage and continuity tests, select the "Voltage" or "Ohms" setting, respectively.
Reading and Recording: Perform the test as per the specific diagnostic procedure. Read and record the test results, ensuring they match the manufacturer's specifications or circuit diagram.
Safety During Testing: Be cautious when performing live tests. Avoid touching multiple terminals or metal components simultaneously, as this can lead to short circuits or electrical shock.
Disconnecting: After the test, disconnect the test probe carefully, ensuring that you do not accidentally touch other electrical components or terminals.
Document the Results: Record the test results, including values and any observations. These records are essential for diagnosing and repairing electrical faults.
Safety After Testing: Reconnect any disconnected components and follow proper safety procedures when reactivating the circuit.
Final Inspection: Conduct a final visual inspection to ensure everything is reassembled correctly and that no tools or equipment were left in the work area.
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Dispose of Excess Material: Dispose of any waste materials or items securely, following environmental procedures.
16.
Describe and explain the electrical measuring and testing procedures, listed in the table below.
Electrical resistance checks
Uses a multimeter to measure the resistance of electrical components, like resistor.
Open and short circuit tests
Open circuit tests check for discontinuities in the circuit, often caused by disconnected or broken wires or faulty components.
Voltage drop test
Voltage drop tests determine voltage losses in a circuit due to resistance or poor connections. It helps locate high-resistance areas in the circuit.
Current flow tests
Current flow tests assess the flow of electrical current in a circuit, ensuring it falls within the expected range.
17.
Describe and explain the visual testing procedures, listed in the table below.
Component moisture ingress
Visual inspection checks for signs of moisture or water ingress into electrical components. This includes looking for water damage, rust, or corrosion. Moisture can cause electrical faults.
Connector damage
Visual checks assess the condition of electrical connectors for physical damage, such as bent or corroded pins, which can lead to poor connections.
18.
Describe and explain the repair procedures for electrical circuits, for the following:
Wire soldering procedures
Using the soldering iron, melt solder on the wire joint to create a secure and conducive connection
Terminal crimping procedures
Use the crimper tool to secure terminal ends and ensure a reliable connection
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Replacing male and female terminals in a connector housing
Remove and replace terminals in a connector house, by cutting off or disconnecting the terminal from the wire. Restores proper electrical connections
Connector removal and replacement procedures
This procedure involves disconnecting and replacing the entire connector assembly.
Basic electrical components removal and replacement procedures
Basic electrical components like fuses, relays, and switches may need replacement if they are malfunctioning. These components can be removed and replaced as necessary.
19.
Describe the post-repair procedures listed in the table below. Circuit/System
Description
Confirming the electrical system is operating to manufacturers specifications.
After making repairs, it's crucial to ensure that the electrical system functions correctly and meets the manufacturer's specifications. This may involve further testing to verify that the issue has been resolved.
Confirming that no other problems are present as a result of the repair.
As a precaution, confirm that the repair work did not introduce new issues. This involves a final check to ensure the system is free from any additional problems arising from the repair.
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QUESTION 2
A company needs to choose one supplier for a particular type of silicon wafer used'in the production of
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University of Babylon
Collage of Engineering\Al-Musayab
Department of Automobile
Engineering
Under Grad/Third stage
Notes:
1-Attempt Four Questions.
2- Q4 Must be Answered
3-Assume any missing data.
4 تسلم الأسئلة بعد الامتحان مع الدفتر
Subject: Mechanical
Element Design I
Date: 2022\01\25
2022-2023
Time: Three Hours
Course 1
Attempt 1
Q1/ Design a thin cylindrical pressure tank (pressure vessel) with hemispherical ends to the
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appropriate thickness of the vessel to carry a sinusoidal pressure varied from {(-0.1) to (6) Mpa}.
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temperature is 80 C° and the dimeter of the cylinder is 36 cm. use a safety factor of 1.8.
Fig. 1
(15 Marks)
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1- Derive the design equation for the direct evaluation of the diameter of a shaft to a desired
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Engineering dynamics
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Jeff was just hired by GSI, Inc. to be their Environmental and Safety Coordinator. This is Jeff's first position after completing his engineering degree. He had taken a course in safety engineering as part of his studies and felt confident that he could handle the job.
Management at GSI, Inc. has assured him that they are committed to maintaining a safe workplace. They have never had an individual dedicated to this task full-time. They will implement his recommendations if he can justify them.
As Jeff begins to get familiar with the operations, he spends considerable time on the production floor. He notices workers clean their tools before break with a liquid from an unmarked 55-gallon drum. They also use this liquid to clean residue from their skin. They use paper towels to dry their tools and hands, throw these towels in the trash, and head to the break room for a snack and/or smoke.
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