Husnain Ashraf_13710731_AURETR122
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AURETR122 Diagnose and repair vehicle dynamic control systems
Assessment 1 – Questioning – Written Assessment
Student Name
Husnain Ashraf
Student ID Number
13710731
Unit Start Date
12-02-2924
Unit End Date
3-03-2024
Assessment Due Date
6-03-2024
Date Submitted
4-03-2024
This cover sheet is to be completed by the student and assessor and used as a record to determine student
competency in this assessment task
The assessment process and tasks were fully explained.
Yes / No
I am aware of which evidence will be collected and how.
Yes / No
I am aware of my right to appeal an assessment decision.
Yes / No
I am aware that I can locate The RTO
Complaints and Appeals Policy and Procedure
on their website at (Insert Website Link)
Yes / No
I have discussed any additional educational support or reasonable adjustments I require in order to undertake this assessment with the Student Support Services Officer and Trainer / Assessor, (if applicable). e.g., Student Handbook
and Access and Equity Policy (Insert Website Link)
Yes / No
I have access to all required resources?
Yes / No
Cheating & Plagiarism Declaration
Student Declaration:
In accordance with The RTO
Plagiarism Policy, I hereby acknowledge by signing this declaration that I have not cheated or plagiarised any work regarding the assessment tasks undertaken in this unit of competency except where the work has been correctly acknowledged.
NOTE: Student must sign this prior to submitting their assessments to the assessor
Signature
Date:
___04___ / __03____ /
2024______
Assessment Results
Satisfactory
or
Not Yet
Satisfactory
(Please circle the assessment result for this task)
Feedback to Student - Please provide general feedback on the student’s performance Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
Document No:
Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
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AURETR122 Diagnose and repair vehicle dynamic control systems
Student Declaration: - I verify that the work completed is my own and that I was adequately informed of the assessment process prior to commencing this assessment task.
Assessor Declaration: - I verify that I have adequately explained and negotiated the assessment tasks with the
student prior to commencing assessment.
Student Name: Husnain Ashraf
Assessor’s Name:
Student Signature
Date 04/03/2024
Assessor Signature
Date Student Guide for Written Knowledge Assessment
Overview of Assessment This is a written assessment task you will be assess on your knowledge of diagnosing and repairing vehicle dynamic control systems.
The topics that will be covered in the assessment are:
1.
Prepare to diagnose and repair vehicle dynamic control system
2.
Diagnose vehicle dynamic control system 3.
Repair vehicle dynamic control system 4.
Complete work processes
This assessment will ensure that the elements, performance criteria, performance evidence and knowledge evidence required, and conditions are adhered to demonstrate competency in this unit assessment task. ●
Read the assessment carefully before commencing.
●
Your Assessor will use the assessment criteria in this document and will provide feedback / comment. ●
You MUST
answer all the questions in the assessment tasks in your own words and
own handwriting. ●
This is an “Open Book” assessment, and students can use the resources listed in the “Resources Required” section below.
Task/s to be assessed
To complete this written assessment, you will need to answer the 81
questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed
On average, the Assessment should take 4 – 6 hours to complete.
Location
This theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making rules
To receive a ‘satisfactory’ outcome for this assessment, students MUST
successfully answer all questions. If a student achieves less than 100%, they can reattempt the assessment after further study has taken place. Students who cannot achieve a minimum of
100% you will not have satisfactorily completed this assessment
Your assessor will be looking for the following in this assessment task: - Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
Document No:
Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
© Nomi College | RTO Code: 31518 | CRICOS Code: 03569A
Page Sequence:
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AURETR122 Diagnose and repair vehicle dynamic control systems
●
Methods to locate and interpret information required to diagnose and repair vehicle dynamic control systems, including:
o
Information provided by customers and supervisors
o
Vehicle dynamic control systems manufacturer specifications
●
Workplace procedures required to diagnose and repair vehicle dynamic control systems, including:
o
Establishing the serviceability of tools and equipment o
Documentation procedures
o
Housekeeping procedures, including:
−
Examination of tools and equipment
−
Storage of equipment
−
Identification, tagging and isolation of faulty equipment
−
Safe disposal of materials
−
Recycling procedures
●
Workplace health and safety (WHS) requirements relating to diagnosing and repairing vehicle dynamic control systems, including procedures for:
o
Using specialised tools and equipment
o
Using appropriate personal protective equipment (PPE)
o
Identifying hazards and controlling risks associated with:
−
Working on vehicle high and low voltage ignition systems
−
Wearing jewellery while working around high current wiring systems
●
Operating principles of vehicle dynamic control systems and associated components, including:
o
Active roll-over protection
o
Anti-lock braking
o
Brake assist
o
Descent control
o
Electronic brake force distribution
o
Electronic park brake
o
Hill start assist
o
Stability control
o
Traction control
o
Active and passive collision avoidance
o
Lane keeping assist
o
Occupant detection systems
o
Adaptive cruise control
o
Roll-over protection
●
Purpose and operation of vehicle dynamic control systems and components, including:
o
ABS, including system inputs, electronic control unit (ECU), abs modulator, and system outputs
o
TCS, including system inputs, ECU, and system outputs, including associated throttle and braking system controls
o
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
●
Diagnostic testing procedures for vehicle dynamic control systems, including:
o
Accessing and interpreting scan tool system data, including:
−
Diagnostic trouble codes (DTCs)
−
Live data
−
Waveforms
o
Using diagnostic flow charts
o
Testing electrical systems, including procedures for:
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
Document No:
Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
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AURETR122 Diagnose and repair vehicle dynamic control systems
o
Accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiring
o
Determining damage to system wiring and connectors
●
Repair procedures for vehicle dynamic control systems, including:
o
Connector removal and replacement procedures
o
Removal and replacement procedures for vehicle dynamic control system components
o
Calibration and re-setting procedures
●
Post-repair testing procedures for vehicle dynamic control systems, including:
o
DTC clearing procedures o
Checking for electrical connector mating
Assessment conditions
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment MUST
include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals MUST
provide evidence that links them to the vehicle dynamic control systems that they have worked on, e.g., Repair orders.
Assessors MUST
verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources MUST
be made available:
●
Automotive repair workplace or simulated workplace
●
Workplace instructions
●
Manufacturer vehicle dynamic control system specifications
●
Two [2] different vehicles or machinery with dynamic control system faults
●
Diagnostic equipment for vehicle dynamic control systems, including:
o
Multimeter
o
Scan tool
●
Tools, equipment and materials appropriate for repairing vehicle dynamic control systems.
Assessors of this unit MUST
satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.
Resources required
Learning Resources available to students include:
●
Automotive Technology (A System Approach) 7
th
Edition – Chapters 2, 5, 6, 7, 16, 23, 48 & 53
●
Websites –
●
Trainer Handouts
Results/Re-
assessment
●
The Assessor will grade the assessment and record the result on the front page of this document (S) – Satisfactory if all observable behaviours are correct and (NS) not satisfactory if any areas are left incorrect
●
Feedback will be provided on either result
●
Where a student receives a ‘NS – Not Satisfactory’ result, the assessor will discuss the area of the non-compliant observable behaviour and an opportunity given for re-
assessment. This may be through direct observation or a different method of assessment e.g., verbal/oral questioning, problem solving exercise. ●
If the outcome is again not satisfactory the student result will be deemed (NYC) not yet competent. Additional feedback will be given, and a time agreed upon for further
assessment after additional training and skills practice has taken place, this information will be recorded, dated and signed in the re-assessment area on the last page of this document
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
Document No:
Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
© Nomi College | RTO Code: 31518 | CRICOS Code: 03569A
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AURETR122 Diagnose and repair vehicle dynamic control systems
●
Where all the assessment tasks have been graded (S) Satisfactory, the student will be deemed C – Competent for the practical component and the result recorded and signed in the area indicated on the last page of this document
Reasonable Adjustment
If the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
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Nomi College – AURETR122
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AURETR122 Diagnose and repair vehicle dynamic control systems
Assessment 1 – Questioning Written Assessment 1.
What four [4] important items of personal safety equipment (PPE) are worn when diagnosing and repairing vehicle dynamic control systems?
1.
Hand safety Gloves
2.
Eye Protection
3.
Safety Shoes
4.
Safety Helmet / Cap
1.
Fill in the missing words
2.
Place the missing words to complete the statement about the reasons why rings, necklaces, bracelets, and watches should not be worn while working around vehicle ignition or electrical systems. Missing Words: metal, short, bare, body electricity.
The ______ metal _________ in most jewellery conducts
_______ electricity ________ very well and can easily cause a ______ short _________, through your _________
body
______ if this jewellery touches a _____
bare
__________ wire.
True or False question. Select the correct answer
3.
Never use a 12-volt testlight to diagnose components and wires in computer systems. The current draw of testlights may damage the computer-system components. High impedance testlights are available for diagnosing computer systems.
☐
True
or
☐
False
True or False question. Select the correct answer
4.
Digital meters have high impedance and can safely be used on electronic circuits as well as electrical circuits. ☐
True
or
☐
False
5.
To prevent personal injury or damage to the vehicle, you should always take the necessary precautions before working on or around a vehicle’s electrical system. You should disconnect the battery before disconnecting any electrical wire or component. Why?
Disconnecting the battery before handling electrical wires or components ensures that there is no power running through the system, reducing the risk of electric shock.
It also prevents accidental short circuits or sparks that could lead to fires or damage to sensitive electronic Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
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rd
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Nomi College – AURETR122
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AURETR122 Diagnose and repair vehicle dynamic control systems
components.
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
Document No:
Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
© Nomi College | RTO Code: 31518 | CRICOS Code: 03569A
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AURETR122 Diagnose and repair vehicle dynamic control systems
Multiple Choice question. Selected the correct answer.
6.
The ignition system produces exceedingly high voltages, and these can be________?
A.
Safe.
B.
Dangerous.
C.
Nothing, as I have safety shoes on.
D.
All these answers are correct.
7.
What is Active Rollover Protection and how does it prevent a vehicle rollover?
Active Rollover Protection systems work by dynamically assisting the driver in maintaining control of the vehicle, thereby reducing the likelihood of rollover accidents.
One common implementation of Active Rollover Protection is Electronic Stability Control (ESC) or Vehicle Stability Control (VSC).
8.
What is an electronic stability control system (ESC)?
An electronic stability control system (ESC) is a safety feature in vehicles that helps prevent skidding and loss of control.
ESC is designed to improve vehicle stability and reduce the risk of accidents, particularly during cornering and sudden manoeuvres. 9.
What does the Anti-Locking braking do? The Anti-Locking Braking System (ABS) is a safety feature in vehicles designed to prevent the wheels from locking up during braking.
It works by modulating the brake pressure to each wheel independently, allowing the driver to maintain steering control while braking.
Multiple Choice question. Selected the correct answer.
10.
The vehicle dynamic control system has hydraulic brake assist that increases pressure to the brakes whenever a(an) ________ is detected through the brake pedal sensor.
A.
Object in the road ahead.
B.
Panic or emergency stop.
C.
Positive wheel slip.
D.
Negative wheel slip.
True or False question. Select the correct answer
11.
Hill Descent Control is a safety feature designed to help you drive down steep gradients. Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
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rd
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AURETR122 Diagnose and repair vehicle dynamic control systems
☐
True
or
☐
False
12.
Explain the operation of Hill Descent Control.
Hill Descent Control operates by using sensors to detect the vehicle's speed, throttle position, and wheel slip while descending steep gradients.
It automatically applies braking force to individual wheels as needed to maintain a controlled descent speed set by the driver, typically at a slow and steady pace.
13.
Electronic Brake Force Distribution (EBD) is used to?
Electronic Brake Force Distribution (EBD) is used to automatically distribute braking force between the front and rear wheels based on various factors such as vehicle load, road conditions, and braking dynamics.
By adjusting brake pressure to each wheel independently, EBD helps optimize braking performance, reduce
stopping distances, and improve vehicle stability during emergency braking situations.
14.
How does the vehicle dynamic control system control Electronic Brake Force Distribution (EBD)?
The Vehicle Dynamic Control (VDC) system controls Electronic Brake Force Distribution (EBD) by continuously monitoring various vehicle parameters such as wheel speed, steering angle, lateral acceleration, and yaw rate.
Based on this information, the VDC system adjusts brake pressure to each wheel independently, ensuring optimal braking performance and stability during dynamic driving conditions.
15.
Explain how Electronic Park Brake (EPB) and Hill Start Assist work together?
Electronic Park Brake (EPB) automatically engages the parking brake when the vehicle is stationary, while Hill Start Assist prevents the vehicle from rolling backward when starting on an incline by briefly maintaining brake pressure.
Together, they ensure that the vehicle remains stationary on hills both when parked and when starting, enhancing convenience and safety for the driver.
16.
What is the primary difference between automatic traction control systems and stability control systems?
Traction control primarily addresses wheel slip to optimize traction during acceleration, while stability control
focuses on maintaining vehicle stability during dynamic maneuvers or slippery conditions.
Traction control intervenes by reducing engine power or applying brakes to specific wheels experiencing wheel slip, while stability control may independently apply brakes to individual wheels to help maintain vehicle stability.
Document Name:
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Multiple Choice question. Selected the correct answer.
17.
The Ford Technician says some antilock brake systems use a lateral acceleration sensor in addition to the wheel speed sensors. The GM Technician says traction control systems apply one wheel brake to control oversteer while turning. Who is correct?
A.
The Ford Technician says some antilock brake systems use a lateral acceleration sensor in addition to the
wheel speed sensors.
B.
The GM Technician says traction control systems apply one wheel brake to control oversteer while turning.
C.
Both “The Ford Technician says some antilock brake systems use a lateral acceleration sensor in addition
to the wheel speed sensors” and “The GM Technician says traction control systems apply one wheel brake to control oversteer while turning”.
D.
Neither “The Ford Technician says some antilock brake systems use a lateral acceleration sensor in addition to the wheel speed sensors” nor “The GM Technician says traction control systems apply one wheel brake to control oversteer while turning”.
18.
List five [5] ways the PCM reduces torque to the drive wheels when the ATC system is in traction control mode.
1
The PCM can reduce engine power output by adjusting fuel delivery or ignition timing, limiting torque transferred to the wheels.
2
The PCM may close the throttle partially or completely to reduce engine torque and prevent wheel slip.
3
The PCM can command the transmission to shift to a higher gear or reduce torque converter lock-up to decrease torque transmitted to the wheels.
4
The PCM can apply braking force selectively to specific wheels experiencing wheel slip, reducing torque
transmitted to those wheels.
5
In vehicles equipped with cylinder deactivation technology, the PCM can deactivate cylinders to reduce overall engine torque output and improve traction.
Multiple Choice question. Selected the correct answer.
19.
Electronic stability control (ESC) systems are being discussed. The Mazda Technician says the brake at the inside rear wheel is applied when the system detects an understeer condition. The Kia Technician says ESC can increase traction. Who is correct?
A.
The Mazda Technician says the brake at the inside rear wheel is applied when the system detects an understeer condition.
B.
The Kia Technician says ESC can increase traction.
C.
Both “The Mazda Technician says the brake at the inside rear wheel is applied when the system detects an understeer condition” and “The Kia Technician says ESC can increase traction”.
D.
Neither “The Mazda Technician says the brake at the inside rear wheel is applied when the system detects an understeer condition” nor “The Kia Technician says ESC can increase traction”.
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
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Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
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AURETR122 Diagnose and repair vehicle dynamic control systems
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
23
rd
Nov 2022
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Nomi College – AURETR122
Version No:
1.0
Last Modified Date:
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AURETR122 Diagnose and repair vehicle dynamic control systems
20.
Collision avoidance systems respond to situations in two [2] different ways. What are they?
1
Pre-Collision Warning: These systems use sensors such as radar, lidar, or cameras to detect potential collisions with other vehicles, pedestrians, or obstacles. When a potential collision is detected, the system alerts the driver through visual, auditory, or haptic warnings to take evasive action.
2
Automatic Emergency Braking (AEB): In addition to warning the driver, some collision avoidance systems are equipped with AEB functionality. If the driver does not respond to the warnings and a collision is imminent, the system can autonomously apply the brakes to mitigate the severity of the impact or, in some cases, prevent the collision altogether.
21.
Collision avoidance systems like Automatic Emergency Braking (AEB) operate by ________?
Collision avoidance systems like Automatic Emergency Braking (AEB) operate by using sensors such as radar, lidar, or cameras to continuously monitor the vehicle's surroundings.
When the system detects a potential collision with another vehicle, pedestrian, or obstacle, it automatically applies the brakes to either mitigate the severity of the impact or prevent the collision altogether.
This proactive intervention helps enhance safety by assisting the driver in avoiding or reducing the consequences of accidents.
Multiple Choice question. Selected the correct answer.
22.
Lane keeping assistance is a pro-active system that is able to ________?
A.
Intervene and manipulates the steering to prevent the driver from veering outside their lane.
B.
Use radar or lasers to adjust your cruise control speed via throttle to maintain an appropriate distance from the vehicle in front of you.
C.
Automatically applied to prevent the vehicle from backing into an object using a cross-traffic monitoring system or sensors like radar or lasers.
D.
All these answers are correct.
23.
Explain what occupant detection system does in the vehicle?
Airbag Deployment Control: It identifies whether a passenger is present in the front passenger seat and adjusts the deployment of airbags accordingly, based on factors such as occupant weight and seating position, to optimize safety during a collision.
Seatbelt Reminder: It may be integrated with seatbelt reminder systems, alerting occupants to fasten their seatbelts if they are detected in a seating position without their seatbelt secured.
Child Safety: In vehicles with rear-facing child seats, the system can deactivate the front passenger airbag to prevent injury to a child from airbag deployment during a crash, enhancing child safety.
24.
What is Adaptive cruise control?
Adaptive cruise control (ACC) is an advanced driver assistance system that enhances traditional cruise control by automatically adjusting the vehicle's speed to maintain a safe following distance from the vehicle ahead.
Document Name:
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AURETR122 Diagnose and repair vehicle dynamic control systems
ACC utilizes radar, lidar, or cameras to detect the distance and speed of vehicles in the same lane, allowing
it to modulate acceleration and braking as needed to keep a preset distance from the lead vehicle.
This system enhances convenience and safety by reducing the need for constant manual speed adjustments in varying traffic conditions.
25.
How does Adaptive cruise control work when it approaches a slower vehicle?
When adaptive cruise control (ACC) approaches a slower vehicle, it uses sensors such as radar or cameras
to detect the distance and speed of the vehicle ahead.
If the lead vehicle is traveling slower than the set cruise control speed, ACC automatically reduces the speed of the host vehicle by applying brakes or reducing engine power to maintain a safe following distance.
Once the road ahead is clear or the slower vehicle accelerates, ACC may resume the preset cruising speed, adapting to traffic conditions seamlessly.
Document Name:
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AURETR122 Diagnose and repair vehicle dynamic control systems
26.
Some convertibles have a built-in roll bar to protect the passengers in case of a rollover. These units are permanent structures of the vehicle. Others have automatic systems that provide for this. How do these automatic systems work?
Automatic roll bar systems in convertibles typically work by using sensors to detect the vehicle's inclination or lateral movement that indicates a potential rollover.
When a rollover risk is detected, the system activates hydraulic or pneumatic actuators to deploy roll bars behind the rear seats within milliseconds.
These roll bars provide additional protection to occupants by reinforcing the vehicle's structure and preventing roof collapse in the event of a rollover accident.
27.
What is a lateral acceleration sensor?
A lateral acceleration sensor is a component in a vehicle's safety system designed to measure the lateral (sideways) forces acting on the vehicle during cornering or evasive maneuvers.
This sensor detects the rate of change of lateral velocity, providing valuable information to stability control systems like Electronic Stability Control (ESC).
By monitoring lateral acceleration, the sensor helps the vehicle's safety systems intervene appropriately to maintain stability and prevent loss of control.
True or False question. Select the correct answer
28.
ABS pressure modulation works to prevent wheel locking. ☐
True
or
☐
False
Multiple Choice question. Selected the correct answer.
29.
Which of the following is NOT a component of an antilock brake system?
A.
Power steering pump.
B.
Master cylinder.
C.
Solenoid valve body assembly.
D.
Wheel sensor.
Multiple Choice question. Selected the correct answer.
30.
Antilock brake systems can modulate the pressure to the brakes as often as ________ times per second.
A.
Five [5].
B.
Fifteen [15].
C.
Fifty [50].
D.
Sixty [60].
Document Name:
Student Written Knowledge Assessment – AURETR122
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rd
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AURETR122 Diagnose and repair vehicle dynamic control systems
Document Name:
Student Written Knowledge Assessment – AURETR122
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rd
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AURETR122 Diagnose and repair vehicle dynamic control systems
True or False question. Select the correct answer
31.
Some antilock brake systems use a lateral acceleration sensor in addition to the wheel speed sensors. ☐
True
or
☐
False
Multiple Choice question. Selected the correct answer.
32.
When the ABS is activated as a wheel begins to lock, the brake pedal will ________.
A.
Drop about one inch.
B.
Go from hard to spongy.
C.
Make the driver feel a small bump followed by rapid pedal pulsations.
D.
All these answers are correct.
Multiple Choice question. Selected the correct answer.
33.
The modulator unit is sometimes called a (n) ________.
A.
Hydraulic actuator.
B.
Hydraulic power unit.
C.
Electro-hydraulic control valve.
D.
All these answers are correct.
True or False question. Select the correct answer
34.
Traction control systems apply one wheel brake to control oversteer wheel turning. ☐
True
or
☐
False
Multiple Choice question. Selected the correct answer.
35.
Automatic traction control (ATC) is being discussed. The GM Technician says vehicles with ATC typically do not have an antilock brake system. The Nissan Technician says ATC applies extra torque to a drive wheel that is spinning and losing traction. Who is correct?
A.
The GM Technician says vehicles with ATC typically do not have an antilock brake system.
B.
The Nissan Technician says ATC applies extra torque to a drive wheel that is spinning and losing traction.
C.
Both “The GM Technician says vehicles with ATC typically do not have an antilock brake system” and “The Nissan Technician says ATC applies extra torque to a drive wheel that is spinning and losing traction”.
D.
Neither “The GM Technician says vehicles with ATC typically do not have an antilock brake system” nor “The Nissan Technician says ATC applies extra torque to a drive wheel that is spinning and losing traction”.
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
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rd
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Nomi College – AURETR122
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AURETR122 Diagnose and repair vehicle dynamic control systems
Document Name:
Student Written Knowledge Assessment – AURETR122
Created Date:
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AURETR122 Diagnose and repair vehicle dynamic control systems
Multiple Choice question. Selected the correct answer.
36.
Which of the following is not a location for the toothed ring (toner ring)?
A.
Axle shaft.
B.
Differential carrier.
C.
Wheel hub.
D.
Modulator unit.
Multiple Choice question. Selected the correct answer.
37.
An accumulator ________?
A.
Stores hydraulic fluid to maintain high pressure in the brake system.
B.
Provides residual pressure for power-assisted braking.
C.
Both “Stores hydraulic fluid to maintain high pressure in the brake system” and “Provides residual pressure for power-assisted braking”.
D.
Neither “Stores hydraulic fluid to maintain high pressure in the brake system” nor “Provides residual pressure for power-assisted braking”.
Multiple Choice question. Selected the correct answer.
38.
A(n) ______ stores hydraulic fluid to maintain pressure and provides residual pressure for power-assisted braking.
A.
Master cylinder.
B.
ABS Module.
C.
Accumulator.
D.
None of these answers are correct.
Multiple Choice question. Selected the correct answer.
39.
While road testing a car equipped with an antilock brake system, The Ford Technician says during heavy braking, several pulses may be felt through the brake pedal. The Mazda Technician says a spongy pedal during normal braking is acceptable. Who is correct?
A.
The Ford Technician says during heavy braking, several pulses may be felt through the brake pedal.
B.
The Mazda Technician says a spongy pedal during normal braking is acceptable.
C.
Both “The Ford Technician says during heavy braking, several pulses may be felt through the brake pedal” and “The Mazda Technician says a spongy pedal during normal braking is acceptable”.
D.
Neither “The Ford Technician says during heavy braking, several pulses may be felt through the brake pedal” nor “The Mazda Technician says a spongy pedal during normal braking is acceptable”.
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Multiple Choice question. Selected the correct answer.
40.
The GM Technician says the solenoid valves inside the modulator unit are used to decrease brake pressure. The Mazda Technician says the solenoids are used to increase pressure. Who is correct?
A.
The GM Technician says the solenoid valves inside the modulator unit are used to decrease brake pressure.
B.
The Mazda Technician says the solenoids are used to increase pressure.
C.
Both “The GM Technician says the solenoid valves inside the modulator unit are used to decrease brake pressure” and “The Mazda Technician says the solenoids are used to increase pressure”.
D.
Neither “The GM Technician says the solenoid valves inside the modulator unit are used to decrease brake pressure” nor “The Mazda Technician says the solenoids are used to increase pressure”.
Multiple Choice question. Selected the correct answer.
41.
When activated, the dump valve sends hydraulic pressure to the ________.
A.
Master cylinder reservoir.
B.
Wheel cylinder/caliper.
C.
Fluid accumulator.
D.
Master cylinder primary chamber.
True or False question. Select the correct answer
42.
Wheel speed sensors are AC generator-type sensors. ☐
True
or
☐
False
Multiple Choice question. Selected the correct answer.
43.
________ ABS systems have individual hydraulic circuits to each of the two front wheels, and a single circuit to the two rear wheels.
A.
Two-channel.
B.
Three-channel.
C.
Four-channel.
D.
Five-channel.
Multiple Choice question. Selected the correct answer.
44.
In addition to wheel speed sensors, ESC systems also require a ________.
A.
Steering angle sensor.
B.
Lateral-acceleration sensor.
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AURETR122 Diagnose and repair vehicle dynamic control systems
C.
Yaw sensor.
D.
All these answers are correct.
Multiple Choice question. Selected the correct answer.
45.
The yaw rate sensor and lateral accelerometer share the same housing and are located ________.
A.
Inside the PCM.
B.
Inside the EBCM.
C.
In the centre of the vehicle.
D.
In the boot (Trunk).
46.
Explain the role of the wheel sensors in an antilock brake system.
Wheel sensors in an antilock brake system (ABS) monitor the rotational speed of each wheel. This information is crucial for the ABS to detect any wheel lock-up during braking.
By continuously monitoring wheel speeds, the ABS can adjust brake pressure to each wheel independently,
preventing wheel lock-up and allowing the driver to maintain steering control during emergency braking situations.
Multiple Choice question. Selected the correct answer.
47.
Depending on the manufacturer, the stability control network of modules may include all the following modules
EXCEPT:
A.
Engine control module (ECM).
B.
Power train control module (PCM).
C.
Electronic brake control module (EBCM).
D.
Electronic pedal actuator (EPA).
48.
Explain the difference between a yaw sensor and a G sensor.
A yaw sensor measures the rate of rotation around the vehicle's vertical axis, providing information about the vehicle's heading changes or rotational movement.
Conversely, a G sensor, also known as an accelerometer, measures the vehicle's linear acceleration in multiple directions, detecting changes in velocity or sudden movements such as braking, cornering, or impacts.
While a yaw sensor focuses on rotational movement, a G sensor assesses linear acceleration, offering complementary data for vehicle stability and safety systems.
True or False question. Select the correct answer
49.
All DTCs will cause the ABS warning light to illuminate. Document Name:
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AURETR122 Diagnose and repair vehicle dynamic control systems
☐
True
or
☐
False
50.
What should you look for when checking connectors for damage?
When checking connectors for damage, you should look for any signs of corrosion, bent or broken pins, and
loose or disconnected wires.
These issues can affect the electrical connection and functionality of the component, leading to system malfunctions or failures.
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Multiple Choice question. Selected the correct answer.
51.
If the computer recognizes a condition that is not correct, it records a:
A.
Soft code.
B.
Diagnostic trouble code.
C.
History code.
D.
Continuous memory code.
Multiple Choice question. Selected the correct answer.
52.
Which of the following is a leading trigger to turn on ABS warning lamps?
A.
Dirty or contaminated fluid.
B.
Dirty or damaged wheel speed sensors.
C.
A defective controller.
D.
A defective hydraulic module.
53.
You should always follow the vehicle manufacturer’s procedures when diagnosing a vehicle dynamic control system. In general, vehicle dynamic control system diagnostics requires different types of testing that must be performed in the specified order listed in the service information. What four [4] types of testing should include:
1
Visual Inspection: Check for any visible damage, loose connections, or signs of wear in system components such as sensors, wiring harnesses, and hydraulic lines.
2
Functional Testing: Verify the functionality of system components by performing tests such as activating
actuators, checking sensor readings, and confirming proper communication between control modules.
3
Data Analysis: Use diagnostic tools to retrieve and analyze data from the vehicle's onboard diagnostic system, including trouble codes, sensor readings, and system parameters, to identify potential issues or
abnormalities.
4
Road Testing: Conduct road tests under various driving conditions to replicate and verify the reported symptoms, observe system behavior, and confirm the effectiveness of any repairs or adjustments made
during the diagnostic process.
Multiple Choice question. Selected the correct answer.
54.
When multiple trouble codes are present in an ABS, look for:
A.
A weak connection at a common ground.
B.
An open circuit.
C.
Low-voltage signals.
D.
High-voltage signals.
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Multiple Choice question. Selected the correct answer.
55.
Most manufacturers put trouble codes for the ABS system as ________.
A.
“C” codes for Chassis.
B.
“P” codes for Powertrain.
C.
“B” codes for Brakes.
D.
“A” codes for ABS.
56.
You are diagnosing a wheel speed sensor fault and scoped the suspected wheel speed sensor. You set the oscilloscope to display AC voltage over a period of several seconds. Because the output is low, set the voltage to read less than 5 volts. Rotating the wheel by hand you observe the oscilloscope pattern below. What does this pattern say about the wheel speed sensor?
No Signal Erratic signal Weak Signal
Noisy Signal
Clean Signal
Multiple Choice question. Selected the correct answer.
57.
You are taking vehicle dynamic control system electrical measurements from the external wire terminal ends on the outside of a plugged-in electrical connector without damaging connectors, fuse holders or wiring is called ________.
A.
Front-probing.
B.
Backprobing.
C.
Side-probing.
D.
All these answers are correct.
Multiple Choice question. Selected the correct answer.
58.
You are diagnosing a 2007 Toyota FJ Cruiser with DTC C0200/31 Front Speed Sensor RH Circuit. Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual, what is the first step in the diagnostic flow charts you need to do?
A.
Read value of data list (front speed sensor).
B.
Check harness and connector (momentary interruption).
C.
Check front speed sensor installation.
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D.
Perform test mode inspection (signal check).
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Multiple Choice question. Selected the correct answer.
59.
The GM Technician uses the schematic diagram to locate exactly where on the vehicle all of the circuit components are located. The KIA Technician uses the electrical schematic diagram to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing. Who is correct??
A.
The GM Technician uses the schematic diagram to locate exactly where on the vehicle all of the circuit components are located.
B.
The KIA Technician uses the electrical schematic diagram to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing.
C.
Both “The GM Technician uses the schematic diagram to locate exactly where on the vehicle all of the circuit components are located” and “The KIA Technician uses the electrical schematic diagram to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing”.
D.
Neither “The GM Technician uses the schematic diagram to locate exactly where on the vehicle all of the circuit components are located” nor “The KIA Technician uses the electrical schematic diagram to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing”.
Multiple Choice question. Selected the correct answer.
60.
If there is damage to vehicle stability control system a terminal or connector, the wires and terminals need to be removed from the connector. If the connector is a one-piece moulded type, it cannot be disassembled for repairs. If it is damaged, it must be ________.
A.
Repaired.
B.
Refitted.
C.
Replaced.
D.
Nothing, it can’t be repaired.
61.
The steering angle sensor is one of the most important sensors in the stability control system. The steering angle sensor will need to be re-centred or relearned (calibration) if six [6] repairs were carried out to the vehicle. What are the six [6] repairs? 1
Wheel alignment or alignment adjustments: Any adjustments made to the alignment of the wheels can affect the steering angle sensor's calibration.
2
Suspension repairs or modifications: Changes to the suspension system, such as replacing suspension components or adjusting ride height, may require recalibration of the steering angle sensor.
3
Steering system repairs: Repairs or replacements involving components of the steering system, such as
the steering rack, tie rods, or steering column, could necessitate recalibration.
4
Wheel or tire replacements: Installing new wheels or tires, especially if they are of a different size or type than the original equipment, may affect the steering angle sensor calibration.
5
Brake system repairs: Certain repairs to the brake system, such as replacing brake calipers, rotors, or pads, could potentially impact the steering angle sensor calibration.
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6
Chassis repairs: Significant repairs to the vehicle's chassis, such as frame straightening or welding, might require recalibration of the steering angle sensor to ensure proper alignment and stability control system functionality.
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62.
Identify the resource for determining ABS brake bleeding procedures and why it should always be used.
The resource for determining ABS brake bleeding procedures is the vehicle's service manual or manufacturer's technical documentation.
It should always be used because ABS systems have specific bleeding procedures to ensure proper removal of air bubbles and maintenance of system integrity, preventing potential brake system malfunctions
and ensuring optimal safety.
63.
You are repairing a 2007 Toyota FJ Cruiser by replacing the Front Speed Sensor and not sure if the Front Speed Sensor is fitted correctly. Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual, what is the recommend speed sensor clearance and toque specification.
26 mA
64.
You are repairing a 2007 Toyota FJ Cruiser by replacing the Yaw Rate and Deceleration Sensor. Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual, write down the twelve [12] main points to removal and installation procedure.
1
Park the vehicle on a level surface and engage the parking brake. Turn off the ignition and disconnect the battery to prevent accidental deployment of safety systems.
2
Identify the position of the yaw rate and deceleration sensor within the vehicle. It's typically located in the interior, often under the center console or dashboard.
3
remove trim panels, covers, or components to access the sensor. Refer to the service manual for specific instructions.
4
Carefully disconnect any electrical connectors attached to the sensor. This may involve releasing retaining clips or pressing tabs to unlock the connectors.
5
Use the appropriate tools to remove any mounting hardware securing the sensor in place. This could include screws, bolts, or clips. Keep track of the hardware for reinstallation.
6
Gently extract the sensor from its mounting position, taking care not to damage surrounding components or wiring.
7
Before installing the new sensor, inspect the mounting area for signs of damage or corrosion. Address any issues as needed.
8
Position the new yaw rate and deceleration sensor in place, aligning it with the mounting holes. Ensure it sits securely and flush with the mounting surface.
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9
Use the appropriate torque specifications to tighten the mounting hardware securely. Avoid over-
tightening to prevent damage.
10
Reconnect any electrical connectors to the sensor, ensuring they are fully seated and securely attached.
11
If removed, reinstall any trim panels or covers that were taken off to access the sensor. Ensure they are
properly aligned and secured.
12
Reconnect the battery and start the vehicle. Test the functionality of the yaw rate and deceleration sensor by driving the vehicle and checking for any warning lights or abnormal behavior. If everything is functioning correctly, the installation is complete.
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65.
You have just replaced the Yaw Rate and Deceleration Sensor on a 2007 Toyota FJ Cruiser. Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual, write down the four [4] main points to carry out the zero-point calibration. 1
Park the vehicle on a level surface.
2
Perform a zero-point calibration using an intelligent tester.
3
Ensure that there is no excessive free play or wear in the steering system.
4
Make sure that the tires are properly inflated and in good condition.
Multiple Choice question. Selected the correct answer.
66.
Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual,
when must a zero-point calibration be carried out?
A.
Replacing the Skid Control ECU.
B.
Replacing the Yaw Rate Sensor.
C.
Adjusting the Front Wheel Alignment.
D.
All these answers are correct.
Fill in the Missing Words
67.
Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop Manual,
place the missing words to complete the statement about DTC checking and clearing procedures using the following missing words.
Missing Words: CLEAR, CODES, Connect, DIAGNOSIS, ignition, Select, switch, tester
1. DTC CHECK (for Using an Intelligent Tester)
(a) Check DTCs.
(1) _______
Connect
________ the intelligent tester to the DLC3.
(2) Turn the _______
ignition
________ switch on.
(3) Turn the tester on.
(4) Read the DTCs using the intelligent tester. _______
Select
________ the following menu items: DIAGNOSIS / OBD/MOBD/ select vehicle / ABS/VSC / DTC INFO / TROUBLE ________
codes
_______.
2. DTC CLEAR (for Using an Intelligent Tester)
(a) Clear DTCs.
(1) Connect the intelligent _____
tester
__________ to the DLC3.
(2) Turn the ignition _______
switch
________ on.
(3) Turn the tester on.
(4) Clear the DTCs using the intelligent tester. Select the following menu items: ______ DIAGNOSIS
_________ / OBD/MOBD/ select vehicle / ABS/VSC / DTC INFO / _______
clear
________ CODES.
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68.
After repairing the vehicle ABS system, with the ignition switch in the run position, the antilock brake control module will perform a preliminary self-check on the antilock electrical system. The self-check takes 3 to 6 seconds, during which time the amber antilock indicator light remains on. Once the self-check is complete, the
ABS indicator light should turn off. What does this is indicate?
A.
That there is still a fault in the vehicle ABS system.
B.
The vehicle ABS system is working correctly.
C.
The vehicle ABS system has turned OFF.
D.
All these answers are correct.
Multiple Choice question. Selected the correct answer.
69.
Inspect all electrical connections for signs of corrosion, damage, fraying, and ________.
A.
Correctly torqued.
B.
Correct coloured connector.
C.
Disconnection.
D.
All these answers are correct.
Multiple Choice question. Selected the correct answer.
70.
While discussing a braking problem with a customer, The Ford Technician says it is important to ask exactly when a problem occurs. The GM Technician says it is important to ask what was done during the last service. Who is correct?
A.
The Ford Technician says it is important to ask exactly when a problem occurs.
B.
The GM Technician says it is important to ask what was done during the last service.
C.
Both “The Ford Technician says it is important to ask exactly when a problem occurs” and “The GM Technician says it is important to ask what was done during the last service”.
D.
Neither “The Ford Technician says it is important to ask exactly when a problem occurs” nor “The GM Technician says it is important to ask what was done during the last service”.
True or False question. Select the correct answer
71.
An automotive technician must adhere to workshop safety guidelines and procedures when using all tools and
equipment.
☐
True
Or
☐
False
True or False question. Select the correct answer
72.
An automotive technician is required to document the work that was performed on a vehicle. Writing or typing in the description of the steps performed during the diagnosis of the vehicle should be worded as if the technician is talking to the customer.
☐
True
or
☐
False
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AURETR122 Diagnose and repair vehicle dynamic control systems
True or False question. Select the correct answer
73.
Inspect your tools for cracks, broken parts, or other dangerous conditions before you use them. Never use broken or damaged tools.
☐
True
or
☐
False
True or False question. Select the correct answer
74.
For best results and long tool life, each tool used must be cleaned and checked before placing it back into the toolbox.
☐
True
Or
☐
False
Multiple Choice question. Select the correct answer.
75.
Lockout/tagout practices and procedures are intended to reduce the risk of automotive technicians’ inadvertently using tools, equipment or materials that have been determined to?
A.
Be unsafe or potentially unsafe.
B.
That are in the process of being serviced.
C.
Both “Be unsafe or potentially unsafe” and “That are in the process of being serviced”.
D.
Neither “Be unsafe or potentially unsafe” and “That are in the process of being serviced”.
True or False question. Select the correct answer
76.
Disposing of excess vehicle dynamic control system materials like old sensors, actuators can be disposed into
their correct recycling bin.
☐
True
or
☐
False
True or False question. Select the correct answer
77.
Second-hand vehicle dynamic control system components, sensors and actuators and wiring harness etc that are in good condition can be reused on the other vehicles of the same make and model?
☐
True
or
☐
False
Multiple Choice question. Selected the correct answer.
78.
Which source of information will give you the most detail about diagnosing faults in the vehicle dynamic control system on the vehicle you are working on?
A.
Workshop manual.
B.
Owner’s manual.
C.
Google.
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D.
Textbooks.
True or False question. Select the correct answer
79.
An automotive technician must adhere to workshop safety guidelines and procedures and follow the manufactures procedures in the workshop manual when diagnosing faults in vehicle dynamic control system.
☐
True
or
☐
False
80.
You are repairing a vehicle dynamic control system fault on a 2007 Toyota FJ Cruiser and replacing the Yaw Sensor. Referring to the 2007 Toyota FJ Cruiser “Brake Control – Vehicle Stability Control System” Workshop
Manual, locate and interpret the torque specification for the Yaw Sensor mounting bolts:
Yaw Sensor Mounting Bolts Torque Specification: 12 Nm (Newton-meters)
Multiple Choice question. Select the correct answer.
81.
A work order is selected or assigned to a service technician who then performs the listed tasks. The work order should be written so that the technician knows exactly what needs to be done. However, if there is any doubt, the technician should clarify the needed task with the ________ or the person who spoke to the customer.
A.
Service advisor.
B.
Service technician.
C.
Spare parts manager.
D.
New car sales manager.
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