AURETR124 Written

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Student Book Written Assessment N\ AU ETR124 Diagnose and repair electronic compression ignition engine \ A management systems Scanned with CamScanner

—‘wemlmt_mwwpmmnmmmu__ - ignition engine management systems Assessment 1 — Questioning — Written Assessment Student Name So khmanj eet Jl‘r{l,lq Student ID Number 21664 Unit Start Date _ , Unit End Date o s Assessment Due Date Qq 2 } 2% | Date Submitted § 17 / 12 } 23 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. Vé No | am aware of which evidence will be collected and how. Ve{/ No | am aware of my right to appeal an assessment decision. \‘e{l‘ No I am aware that | can locate the AIBT's Complaints and Appeals Policy and Procedure on their ‘f{s, / No website at https:/aibtglobal.edu.au/ | have discussed any additional educational support or reasonable adjustments | require in order to V‘ undertake this assessment with the Student Support Services Officer and Trainer / Assessor, (if es/No applicable). e.g. Student Handbook and Access and Equity Policy https://aibtglobal.edu.au/ | have access to all required resources? \figl No Cheating & Plagiarism Declaration Student Declaration: In accordance with the AIBT’s Academic Misconduct Policy, | hereby acknowledge by signing this declaration that | 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 ﬂ, LDate: ﬂ 1_12 12023 Satisfactory or Not Yet Satisfactory Assessment Results (Please circle or highlight the assessment result for this task) Feedback to Student - Please provide general feedback on the Student's performance Student Declaration: - | verify that the work completed | Assessor Declaration: - | verify that | have adequately is my own and that | was adequately informed of the explained and negotiated the assessment tasks with the assessment process prior to commencing this student prior to commencing assessment. assessment task. Student Signature & Assessor Signature pate Y (12 )23 Date Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 2 of 29 Scanned with CamScanner

1 rAURETR124-Diagnose-and-repair-efectronic-compression——— W ignition engine management systems Context and Conditions of Assessment 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. e This is an open book assessment and will be conducted at your designated campus / workshop / specialised lab. 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. Your Trainer / Assessor will inform you of the due date for this assessment task. Your Assessor will grade as either S — Satisfactory or NS — Not Satisfactory for the assessment. In all cases your Assessor will provide you with feedback. ¢ Only when all assessment tasks have been graded as S - Satisfactory you will be deemed C — Competent in the final result of the unit of competency; if you do not satisfactorily complete all the assessment tasks you will be deemed NYC — Not Yet Competent. Re-Assessment Conditions o Ifthe evidence is graded as NS — Not Satisfactory you will be required to re-submit the evidence. In this case, you will be provided with clear and constructive feedback based on the assessment decision so that they can improve your skills / knowledge prior to reassessment. o Where a ‘NS — Not Satisfactory’ judgement is made, you will be given guidance on steps to take to improve your performance and provided the opportunity to resubmit evidence to demonstrate competence. The assessor will determine and discuss the reasons for NS — Not satisfactory on any of the criteria and will assess you through a different method of assessment e.g. verbal/oral questioning, problem solving exercises. e You will be notified between 10-30 working days of undertaking an assessment of their result in achieving competency o Ifastudent does not complete the assessment, they should notify their trainer as to why they did not complete the assessment and if due to iliness, a medical certificate must be produced. o In the above scenario, student will be given an opportunity for reassessment within 5 working days with no reassessment fee charged. o Students who are deemed to be Not Yet Competent (NYC) will be provided with information identifying the areas in which they failed to achieve competency. Students will then have the opportunity to repeat the assessment task within 5 working days of notification with no reassessment fee charged. o Ifastudentis deemed NYC in the reassessment or if the student did not approach the AIBT's within five working days with a valid reason for not availing themselves of the reassessment opportunity, then those students will be given a final chance to re-sit the assessment and will be charged a reassessment fee as per AIBT rule. o After this no further reassessment attempt will be provided to the student and the student will be required to repeat the whole unit with full fee for the unit. The student will be made aware of the impact of repeating the unit may have on their student visa. o Ifastudent is found to be cheating or plagiarising their assessment, a reassessment fee will be charged for reassessing the assessment within 5 working days. o If the student is found to be plagiarising or cheating again after conclusion of the Intervention meeting with the Course Co-ordinator, the matter will be referred to the Academic Management Committee which may result in the suspension or cancellation of their enrolment o AIBT's has intervention strategies, including student support services available to enable students to complete qualification in the expected time frame. Students at risk of not completing within this time frame are identified as early as possible and an intervention strategy is put in place. AIBT will ensure access to: « Automotive repair workplace or simulated workplace o Workplace instructions o Manufacturer specifications for compression ignition engine management systems Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 3 of 29 Scanned with CamScanner

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—_— | AURETR124 Diagnose and repair electronic compression_ w%]i/_ ignition engine management systems o Three different vehicles or machinery with compression ignition engine management system faults * Diagnostic equipment for compression ignition engine management systems, including: o Multimeter o Scan tool ® Tools, equipment and materials appropriate for repairing compression ignition engine management systems Evidence to be submitted by the student: - o Completed written responses to the questions in the assessment task Assessment Decision Making Rules Your assessor will assess the evidence submitted for the following elements, performance criteria, performance evidence and knowledge evidence to confirm that the student evidence submitted demonstrates validity, sufficiency, authenticity and confirms current skills and knowledge relevant to the unit of competency. Your assessor will be looking for the following in this assessment task: - * Work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing compression ignition engine management systems, including procedures for identifying hazards and controlling risks associated with: o Working with high pressure diesel fuel systems o Wearing jewellery while working around high current wiring systems o Operating principles of diesel fuel injection systems and associated components, including: o Phases of combustion o Composition of diesel fuel, including cetane and sulphur content ! o Application, purpose and operation of compression ignition engine management systems and components, including common rail fuel systems: o Low pressure stage o High pressure stage, including: — High pressure injection pump - Common fuel rail - Injectors — High pressure fuel line o Compression ignition engine management systems, including: — Sensors - Actuators — Wiring harness — Electronic control module (ECM) — Associated vehicle systems « Diagnostic testing procedures for compression ignition engine management systems, including: o Diagnostic flow charts o Fuel system testing, including: — Low pressure fuel system testing — High pressure fuel system testing o Testing electrical systems, including procedures for: — Accessing electrical terminals and using test probes without damaging connectors or wiring - Injector testing | — Sensor testing — Actuator testing o Accessing and interpreting industry-relevant test equipment data, including: — Fault codes — Livedata — Freeze frame data - Waveforms « Repair or replacement procedures for compression ignition engine management systems, including procedures for: o __Removing and replacing sensors Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 4 of 29 Scanned with CamScanner

—l 2 AUREFR424-Di ; irefectroni BrealeH | ignition engine management systems o Removing and replacing actuators, including fuel injectors and fuel pumps o Adjusting and recalibrating components and their associated systems * Post-repair testing procedures, including procedures for: o Clearing fault codes o Assessing engine performance o Checking for electrical connector mating. Assessment 1 — Questioning — Written Version: 2,0 Created: May 2021 Assessment — AURETR124 Page 5 of 29 Scanned with CamScanner

‘ WGWI_ ignition engine management systems Assessment 1 — Questioning Written Assessment 1. Identify five (5) important items of personal safety. Saled shoes Gelasses P Gloves 4 Helmet Neo Jewelloay d a True or False question 2. High-pressure atomised fuel is extremely dangerous, and no part of the body should be in danger of contacting it. E/Tl:ue or O Faise True or False question 3. Your body is a good conductor of electricity. Remember this when working on a vehicle’s electrical system. Always observe all electrical safety rules. %rue or O Faise True or False question 4. The metals in most jewellery conducts electricity very well and can easily cause a short, through you if it touches a bare wire. ﬂue or O False Assessment 1 — Questioning ~ Wiitten Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 6 of 20 Scanned with CamScanner

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: * ignition engine management systems 5. Explain what the four [4] phases of combustion are? ! PDLJFh 2 E?fhac/J" 3 Tntgke 4 Compess jon 6. Combustion depends on a number of factors. Name the four [4] factors? ' High Compnesgion yabo If-1 . 2 fyg( injeckd _at conmect hming 3 fompnised ain mud be het . pde{fiqk aim__pawit _be admitkd _intde oaqh‘ndu True or False question 7. The diesel fuel's antiknock quality is measured by the cetane rating. @4% or [ False Multiple choice. Circle the correct answer 8. Which of the following is NOT an advantage of biodiesel fuel? A. HC emissions can be reduced by 50 percent. B. PM emissions can be reduced by 47 percent. C. Sulphur emissions can essentially be eliminated. It cost less to produce than petroleum-based oil. True or False question 9. The diesel fuel's ignition quality is measured by a cetane rating. %e or O Faise Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 7 of 20 Scanned with CamScanner

| AURETR124 Diagnose and repair electronic. compression___| —aiﬂl-md’/— ignition engine management systems Fill in the gaps 10. Complete the following sentence about cetane rating. Words: assigned, burn, cetane, chamber, efficiently, engine, hydrocarbon, ignites, power, pressures, pure, test, time, 100 The _( efim e rating of the fuel is based on a i-g( t that uses a single-cylinder test 1 engine with a variable compression ratio. As a result of the test, the fuel is £C e a cetane ; number. Cetane is a colourless, liquid o Cqapohthat ignites immediately when introduced to compression heat and kn eSSvunef Pure cetane has a numerical rating of oo and diesel fuels are compared to cetane and rated according to its performance relative to k; 2470 cetane. Actually, the cetane number represents the amount of im e the fuel delays ignition after it has been introduced into the combustion _¢.f1gm her . obviously, if the fuel {jn (‘k( instantaneously (no delay), it will have a rating of 100. A short delay period allows the fuel to bunn more completely, and the engine will run more smoothly with more while producing low emissions. Fuel that takes a longer time to ignite does not allow the engine to work as Cf- fi'c [(nj !’ . Generally speaking, the cetane number expresses the fuel's ability to start the en } ne at low temperatures and warm up quickly, without misfires. Multiple choice. Circle the correct answer 11. Low sulphur diesel fuel contains up to ppm. et B. 215. C. 350. D. 500. Multiple choice. Circle the correct answer 12. Engines that run on low sulphur diesel fuel and new engine emission devices has resulted in more than 90 precent reduction in soot and A. Soot. B. NOx. VC. . Oa Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 8 of 29 Scanned with CamScanner

_— - AURETR124-Diagnose-and-repair-electronic-compression——— W ignition engine management systems 13. On the common-rail fuel injection system, what does the low-pressure stage consist of? Fuel Fank, Ui} bumb , Ii¥ten ancl sphoon linec True or False question 14. The low-pressure pump operates continuously to supply fuel to the high-pressure pump. %e or D False Multiple choice. Circle the correct answer 15. Thereis a on common-rail fuel injection systems that is responsible for controlling fuel delivery, operating the injectors and adjusting injection timing. A@nsor. B. BCM. C. ECM. D. Actuator. 16. On the common-rail fuel injection system, what does the high-pressure stage consist of? ] Ié 14 ‘nieche n 14 ontnel valves and %a}f Ibhfjjvnf valve - Multiple choice. Circle the correct answer 17. The fuel delivered from the pump to the common rail is at high pressure (up to ) and a heavy- wall tube is used to contain the pressure. A. 1300 bar. B. 18855 psi. C. 130000 kPa. /" All the answers are correct. Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 929 Scanned with CamScanner

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|_AURETR124 Diagnase and repair electronic compression | w&mﬂr ignition engine management systems 18. Name the eleven [11] fuel injection and electronic components of the common-rail fuel injection system below. 6 9 5 4 oy o) 5 1 = t ' Foel tank " High pnessone line 2 10} Gifen ® £ nail 3 (¢ ,)wm/b ¢ ‘i’n;'c(%o}\ 4 Poel Glten 0 Leekdowon line 5 ) u el lin "ECY Multiple choice. Circle the correct answer 19. Which of the following best describes the type of pump used with typical Bosch common-rail fuel injection system? A. Rotary distributor. ‘yufine plunger. . Radial piston. D. Opposed plunger. Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 10 of 29 Scanned with CamScanner

FAURETR424-Diagnose-and-repair-electronic-compression——— W ignition engine management systems 20. Name the fifteen [15] high-pressure pump components below. 6 7 . i 4 L3 o 3 ' _E— =) 9 2 | 1 . ::j e 24 10 15 14 Tha ' Chat! ® High bress ovtlet a1 2 Eccentri'c Yk eSS (on olened ® Puel Lo bressune inlef " One Loy ball 4 High ,bn!-‘.s charmbes, 2 Petunn ° pllivesy valve B low pmess inlet S Blas d(on‘}hol Solenoid U one pay ball valve " Rall valve S Plowo ua(f}ur netorn 9a/le. 8 d Seal 21. Explain the purpose of the common-rail in the common-rail fuel injection system? _MWMMM&MM% the )n(){r fors connected te it Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 11 of 29 Scanned with CamScanner

W%W ignition engine management systems Multiple choice. Circle the correct answer 22. What type of injectors are used in a common-rail fuel injection system? A. Pintle injectors. B. Poppet injectors. C. Multi-orifice injectors. * Electrohydraulic injectors. Multiple choice. Circle the correct answer 23. Whatiis used to switch an electrohydraulic injectors (EHI) used in a common-rail fuel injection system? @Ajlse width modulated signal. B. Analogue voltage charge. C. Fuel volume in accumulator. D. Hydraulic distributor head. 24. Why are the high-pressure fuel lines in a common-rail fuel injection system different to other diesel systems? e ane sinde oS only, Once wemoved the, auc vn senviceable ~ end nead nerlv[cfcpm(n+' Multiple choice. Circle the correct answer 25. When a common-rail fuel injection system high-pressure fuel lines is removed for any reason, which of the following steps is required by most engine OEMs? A. Remove and replace the line nuts. B. Torque the line nuts to spec. yjess the sealing nipples on a grinder. " Replace the high-pressure fuel lines. Assessment 1 - Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 12 of 29 Scanned with CamScanner

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——— -AURETR424-Diagnose-and-repair-electronic-compression——— W ignition engine management systems True or False question 26. The desired rail pressure in a common-rail fuel injection system is signalled by the rail pressure sensor. ﬂue or O Faise True or False question 27. The actual rail pressure in a common-rail fuel injection system is calculated by the ECM. Zéue or D False Multiple choice. Circle the correct answer 28. What component is used to control the actual rail pressure of a common-rail fuel injection system? A. il pressure sensor. " Rail pressure control valve. C. EHI solenoid. D. Accumulator. Multiple choice. Circle the correct answer 29. Which component is the fuel rail-pressure sensor mounted in a common-rail fuel injection system? A. High-pressure pump. B. hydraulic injectors. ” Common-rail. D. Allthese answers are correct. True or False question 30. The fuel rail temperature sensor is a thermistor and is located upstream from the rail. It is V-Ref powered and signals fuel temperature in the rail to the PCM. True or O False Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 13 of 29 Scanned with CamScanner

m ignition engine management systems Multiple choice. Circle the correct answer 31. What type of device is used as a coolant temperature sensor on a compression ignition engine management system? . NTC thermistor. B. PTC thermistor. C. Pyrometer. D. Infrared thermistor. Fill in the gaps 32. Complete the following sentence about coolant circuit management. Words: cooling, diesel, engine, malfunction, management, programmed, strategies, temperature, timing In modern low-emissions engines, the ('gol l‘gzg circuit must be managed both indirectly and directly by the engine €N 1-electronics? This requires a complex monitoring circuit. A d [f_.§¢| engine codting system is monitored in different ways according to the generation of the system. Coolant fimkcr_m?\_)}g is often a primary reference for the engine management software when it determines hmin 7 and air/fuel ratio parameters on electronically managed eg(lz"( nes systems, so thie temperature display to the operator is secondary in importance. All current electronically managed engines can be knajmmdto default to failure ,s_,l_;fi k;,‘e(. which may include engine shutdown based on the coolant temperature or level readings, or detection of ma (:Zgn t& n_in components that could result in high emissions. 33. Potentiometers are used in many throttle position sensors (TPS). A disadvantage of a potentiometer-type TPS is? Pofenh; NS v (oes imlbrdanw Some do not even contac} dhe " hanh” by using yuductane and (@) J hall sensors True or False question 34. Mass air flow (MAF) sensors are required on all current diesel engines. Z/T;ue or [ Faise Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 14 of 29 Scanned with CamScanner

W ignition engine management systems Multiple choice. Circle the correct answer 35. The objective of the mass air flow (MAF) sensors is to provide the PCM with accurate measurement of the mass (weight) of the delivered to the engine cylinders? ey . Air. C. Water. D. All these answers are incorrect. 36. Mass air flow (MAF) sensors are designed to work with other temperature and pressure sensors in the intake circuit. This allows the PCM to compensate for four [4] changing conditions such as? ' Manifoldd Jsessune 2 Tnicke ain tem) 37. Because most diesels use almost identical fuel systems mostly made by one manufacturer, the output hardware does not vary significantly. The PCM uses a combination of signals and electrical impulses to put the results of processing into action. The output circuit always begins in the PCM or in a module bus connected to it. To make devices such as injectors and pressure valves operate under PCM control, actuators are required. Name five [5] output devices used by the PCM. L ﬂ;hbo contnel solnejd 2 foel ?lo:,) solenes d | ¢ 567-: 4 ThnoH e 5 Goel brgsseme solensid Assessment 1 - Questioning ~ Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 15 of 29 | Scanned with CamScanner

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- | AURFTR124 Diagnose and repair electronic compression. | m ignition engine management systems Multiple choice. Circle the correct answer 38. The EGR system in the electronic compression ignition engine management system is controlled by output. A. Solenoids. B. Piezoelectric actuators. C. Stepper motors. All these answers are incorrect. 39. What are four [4] functions of powertrain control module (PCM) in electronic compression ignition engine management system? ! (on'}nol erssion 2 Detect mol/fonchon * Smeoth powen deliveny * Deta fFon can bus True or False question 40. Some PCM inputs come from another control module through the vehicle network. IZfir-ue or L__| False True or False question 41. For most actuators, the circuit driver in the PCM applies a ground to the circuit to turn the actuators on and removes the ground to turn the actuators off. True or D False Multiple choice. Circle the correct answer 42. Which of the following fits the description of multiplexing? miple vehicle computers networked by a data bus. B. GPS communications. C. Vehicle ECM to PCM communications. D. Laptop to vehicle data bus handshake networking. Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 16 of 29 Scanned with CamScanner

R ANBTGIohal T oo | : ignition engine management systems True or False question 43. Multiplexing reduces hardware and makes vehicle operation more efficient. True or D False Multiple choice. Circle the correct answer 44. Atypical Cooled-EGR (C-EGR) system on a diesel engine has to be PCM controlled because the mixture percentage varies according to how the engine is being operated. This ranges between 0 and depending on the manufacturer, may be as high as percent. 45. A Cooled-EGR (C-EGR) system consist of? - Exhaus? as heat ?I‘Ch‘i’d.jfih - Coolant cinewi?t 'fkm@&yh et exchapfu - fas valee };_o;{%’on Sentos -,?'fa}n/c.sj steel hb»‘rg’; True or False question 46. A Diesel Particulate Filters (DPF) is an aftertreatment device designed to eliminate soot produced by the cylinder combustion process. @(ue or O Faise Fill in the gaps 47. Complete the following sentence about Diesel Particulate Filters (DPF). Words: combust, collect, regeneration, service Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 17 of 29 Scanned with CamScanner

—_— | AURETR124 Diagnose and repair electronic compression | W ignition engine management systems The basic function of a DPF is to ( ol lec {' (by entrapment) soot, then ¢ 2mb v £ itinto ash. Combustion of collected soot is known as h oyBecause a small amount of ash results from combusting soot, all DPFs require vi intervention to remove these solids from time to time. 48. Name the components of the engine breathing circuit which is important in the electronic compression ignition engine management system. LEGEND £ INTAKE | BHAST {3 COCLED EXHAUST () CRANKCASE BASES 1U,b}7(4 intehe Man/,rpv/d L ? lowes intahe pmanield 2 (hapge cooloa _inlet g Eda ovt Lt Aubr 9 (har\ge coolox * £x _manifold to nge dobe “ 4839 gl head ® Req valve 15 (of} l/(a)l.u{ covey ° Riznt valve couves 'S (f4 dvnbo intake bipe " Rt el bred " fimbo down pike ¢ ﬂ?fh'} éjr manifold " Cnankcase vent : Rf'a&jf’ tunbo _intake valve " Tuwbo " Chare. cooles _ovtlet True or False question Assessment 1 — Questioning — Witten Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 18 of 29 Scanned with CamScanner

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ﬂmwwwmmm—— WG‘M/_ ignition engine management systems 49. The role of the intake system in a diesel engine is to supply a charge of air or air/dead gas mixture to the engine cylinders. %ue or |:| False True or False question 50. Diesel engine must be managed so that they achieve the best fuel economy while producing a minimum of ‘harmful emissions, and that means precisely controlling the amount of oxygen that get into the engine cylinders. Z(True or D False True or False question 51. In most current diesel engines, the powertrain control module (PCM) manages engine breathing to optimise emissions. Eﬂme or D False True or False question 52. Symptom-based diagnostic charts focus on a definition of the problem and offer a list of possible causes of the problem. mue or O Faise 53. Looking at the diagnostic fault chart below, what are the possible causes for DTC P0122? Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 19 of 20 Scanned with CamScanner

| AURETR124 Diagnose and repair electronic compression | ignition engine management systems e s Threttie / Potel Position Senacy / Swich A" Crout Mafrcion 1. TP sensor ‘Thvotie / Pecal Poton Sensor / Swich A" Crst Rarge / LTP semor Pertrmance Protem “Thvctte/ Pocal Posiion Sensor /Swich A" Crot Low kot 1. 7P sensr ef ¢ ¢|= Thvotte / Pecl Posiion Semscr | Swich A" Crout HGh st 1. TP sermor 2 Theotti / Pecl Postion Sensor / Swich 6" Crcut 1.TP sensor Trvotte / Pecal Poslton Serscr / Swich '8 Cro Low kot 1.TP sensor 2 Trvorte Pedal Positon Sentor / Swich *B° Crcut Hgh ot = _Thnodtle pedal positen Senson P cmeyi't (qulf' Fill in the gaps 54. Complete the following sentence about testing the low-pressure fuel system. Words: faulty, fuel leak, gauge, immediately, observe, pressure, specifications, testing, visual Prior to :[:GS izfi the fuel pump, a careful _v (S ua{ inspection of the injectors, fuel rail, sign of a [(’gk should be noted, and the cause corrected J_mm_dj_qu The supply line into the fuel rail is a likely point of leakage. Check the area around the fitting to make Stre no leaks have occurred. To test fuel }Zh SSv e, connect the appropriate pressure ig ug e to the fuel rail test fitting. Turn the ignition switch to the run position and ob SenV the fuel pressure gauge. Compare the reading to _A_km:fi(_qzm_.l A reading lower than normal can indicates a [,Egu (% fuel pump or fuel delivery system. and fuel lines and hoses is necessary. Any Fill in the gaps 55. Complete the following sentence about testing the high-pressure fuel system. Words: sound, check, controlling, high, scan, pressure, gauge, fuel, fluctuate, electrical, specified, not Because common-rail fuel injection system operates under very br'ib pressures, a typical fuel volume check should __n gi be done. However, the SV of the fuel can be checked as well as the condition of the high- pressure pump. Fuel pressure is best tested by | (gﬂhjg (i n7 the activity of the pump witha ___SCan tool. With the scan tool and fuel | Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 | Assessment - AURETR124 Page 20 of 29 Scanned with CamScanner

Wm ignition engine management systems pressure [v) connected, start the engine. Select the mode on the tool that allows for control of the h @h pressure (this mode will vary with the type of tool). Attempt to bring the fuel pressure up to th o P pressure. While changing the pressure, the reading should Elu ﬂgfik . Also listen to the __Se (gﬂa,‘ Q[ of the pump. It too should cycle. If any of these conditions do not exist, __ ¢}y ﬂ(k the pump, its __ele¢tn,cel circuits, pressure sensor, and the PCM. Multiple choice. Circle the correct answer 56. The best method for testing wires and electrical connections is a A. Ohmmeter test. '\,B./\-/oltage drop test. C. Inductive ammeter. D. Infrared pyrometer. Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 21 of 29 Scanned with CamScanner

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- | AURETR124 Diagnose and repair electronic.compression__| welm— ignition engine management systems True or False question 57. Taking electrical measurements from the external wire terminal ends on the outside of a plugged-in electrical connector is called front-probing. D True or B/False Multiple choice. Circle the correct answer 58. How should a cylinder misfire be checked out on an electronically controlled, EHI fuelled diesel engine? A. Sequentially short out each injector by cracking each high-pressure pipe. B. Remove the exhaust manifold and check for smoke. C. hanically hold the EHI rocker in its down position. " Use an EST to perform an electronic cylinder cut-out test. Multiple choice. Circle the correct answer 59. A MAP sensor with a varying frequency output can be tested with a(n)? A. Voltmeter. B. Ohmmeter. C. with a duty cycle function. ” DMM with a frequency function. Multiple choice. Circle the correct answer 60. A vehicle with a DTC for an engine coolant temperature out of range code is being tested. The serial data stream shows the coolant temperature to be 198 degrees Fahrenheit. When the technician tests the resistance between the ETC terminals, he finds infinite resistance. The specifications call for 20 to 40 ohms at 200 degrees Fahrenheit. After the ECT is replaced and the code is erased, the system runs normally, and the code and MIL illumination do not reoccur. How is this possible? A. There was excessive air in the cooling system; when the ECT sensor was removed, the trapped air bled out. B. The ETC code was set by a loose connection where the harness meets the ECT terminals; disconnecting and reconnecting the plug essentially fixed the problem. C. The problem is an intermittent electrical fault; it will eventually reoccur. " When the ECT failed, the PCM substituted a nominal ECT value that allowed the engine to run in limp home mode; the substituted value was displayed by the scan tool. Assessment 1 — Questioning — Written Assessment - AURETR124 Version: 2.0 Created: May 2021 Page 22 of 29 Scanned with CamScanner

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— | AUREFR424-Dingnose-and-repair-electronic-compression—— \JL*IBTG‘.W‘T_ ignition engine management systems True or False question 61. On some vehicles, actuators can be tested with a scan tool by accessing output state control (OSO) or output test mode (OTM). True or O Faise True or False question 62. To access stored diagnostic trouble codes (DTCs), the scan tool requests data using Mode $06. Depending on the scan tool, a description of the DTC may be provided on the scan tool. True or D False Multiple choice. Circle the correct answer 63. When connecting the scan tool? A. Be sure the ignition switch is OFF. B. If required, install the proper module for the vehicle and the system into the scan tool. ydfinect the scan tool to the DLC. . All these answers are correct. 64. After retrieving the DTCs, find their descriptions in the service information. Normally the descriptions are followed by additional information to help diagnosis. For DTC P0117 Engine Coolant Temperature (ECT) Sensor 1 Circuit Low. Write down “What is the description”, “Possible causes” and “Diagnostic aids”. Use the example in Automotive Technology 7t" Edition Textbook Figure 25-3. Description: \Sf’”.f”h losc than minipmum shec . 0.2 volt T Possible Causes: (?'ﬂ"" % d 5 d st Ot Fau by spnsor J Diagnostic Aids: (oncern '8 #7&7(.\‘(')7‘ if less dhan 0.2 volt 77 with Rew o engire off. ¢) d Assessment 1 - Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 23 of 29 Scanned with CamScanner

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Il — - | AURETR124 Diagnase and repair electronic compression | m ignition engine management systems 65. In the scan tool live data below, answer the following information. CURRENT DATA ENGINE SPD.. 2268RPM . w COOLANT TEWP . 198°F Engine RPM: Z Zéfi VEHICLE SPD, 16N ADUANCE. CALC LORD, L Coolant Temp: 190 F INTRKE AR, . . o3 Vehicle Speed: 6 0 mbh Calculated Load: 3 2.2/ SHORT FT . SadEaE M 1.2 Wy mim 027 b1 usep Throttle Position: 1.5 a0 Intake Ait Temp: q3 F b MIL: CAT EVAL. 3 HTD CAT o NA On 2nd AIR EUAL. . o NA DTC Codes: ] A/C EVAL .... ¢ 025 EVAL.. 66. What is freeze-frame? I . g 97")0( 2 consecodive out of .s,be( Ma/,%nchan—f occor dyning oho__dnive cucle, GH!P?J(F)\QMC IS m,H;ned °on _ evpny ,bahe.me-k( CoN@nnine __emiSion coptrel M e mmpimose, True or False question 67. Erasing the DTC code with a scan tool will erase the corresponding freeze-frame data. True or O Faise Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 24 of 29 Scanned with CamScanner

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ignition engine management systems Multiple choice. Circle the correct answer 68. The freeze-frame data below are actual values of a fault that the PCM has captured for DTC P200C Diesel Particulate Filter Over Temperature Bank 1. What can the freeze-frame date tell us about this vehicle fault when this DTC was set? Setect Option ? - T B L e R DTC's w/TSB or $SMs Information P200C == T = EORTP_CMD o, A. EGT 12, 12, & 13 are faulty as they are reading very EGHTYY e e ESATY 4w Pacoe FRP_A 2018 bpwl & simj Engine CMDTCs FREACND 2w cupul B EGT 14 is faulty as it is P200C 004 o - 8 'v:‘vi_:; e reading different to EGT ::-:::‘:.;:z:a : R ] 12,12, & 13. P247A°00-24- PCM > :c:‘: :“: C. EGRTP_CMD is reading Freeze Frame - Mode 2 > 0%. EGTI : T288F » Pending DTC % P200C- PCM P200C- PCM P2455- PCH e EGTI2 | T43F D. Allthese answers are incorrect. EGT1) :7288°F EGT14 1 158KF TA: 1200000100 J Bt O B s s ) - Lot <Nl A== g = = e ope o] A Monmal lineas maf rrtshonse ® Glitches in Jéjnal eithes connethon ou maf idself Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 25 of 29 Scanned with CamScanner

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" | AURETR124 Diagnose and repair electronic. compression_| m ignition engine management systems 70. Referring to the Ford SZ Territory WSM. Explain the seven [7] steps to replace the Camshaft Position (CMP) Sensor ! Disconnect bapten, gmoond 2 . Disconnecd cem senson Q emove Sensok S Pnstall new cam senson Tom&y( necy bo(f- o 10 nm (onnect Fenmingle ~ Reconnect ground Fill in the gaps 71. Complete the following statement about replacing the fuel pump using the following words. Words: bolts, bend, compare, connections, disconnect, electrical, installed, labelled, leaks, negative, properly, pump, removing, replace, terminal Before ovi the fuel pump, disconnect the Wl battery cable. Then disconnect the glg('hq [gql connectors on the fuel pum; Now g{[ fte nmd the fuel lines at the pump. These lines should also be labt’ l[gd so they are |hd3[kg correctly on the new pump. Loosen and remove the __ha| fi holding the pump in place. Remove the by pushing the pump up until the bottom is clear of the bracket. Swing the pump out to the side and pull it down too free it from the rubber fuel line coupler. the replacement pump with the old one. When inserting the new pump back into its bracket, be careful not to bgnd the bracket. If the fuel was removed from the tank, nfikl&g it. Make sure all electrical _conn€c ia n( arereconnected and that all fuel lines and hoses are o fastened and tightened. Then reconnect the negative ﬂhm ,'ng,( at the battery. Start the engine and check all connections for fuel ks 3 True or False question 72. You must follow the manufactures recommended method of removing an injector from a cylinder head. 'Z{ru‘e or D False Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 26 of 29 Scanned with CamScanner

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T REAIBTCwbut s m—— ignition engine management systems Multiple choice. Circle the correct answer 73. Before attempting to remove any injectors, you should A. Clean the surrounding area; any dirt around the injector bore can end up in the engine cylinder below it. B. Itis also good practice to drain high-pressure lines when removing the pipe fittings. C. Use a line wrench or socket to loosen line nuts: they are easy to round off, and if you damage one you will end up replacing the line. MII these answers are correct. 74. Under what circumstances should a PCM be reflashed? Du'n,‘h(} q manu@qn)vn(,( necall on rl!"bl&(('r\J qC,I'qu/v(‘jq ceu. True or False question 75. Make sure all wiring connector locks are in good condition and are in place. %Je or D False True or False question 76. After repairing connectors or connector terminals, make sure the terminals are properly retained and the connector is sealed. True or O Faise Assessment 1 — Questioning — Written .~ Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 27 of 29 Scanned with CamScanner

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J— | AURETR124 Diagnose and repair electronic compression_| %ﬂ% ignition engine management systems Fill in the gaps 77. Complete the following statement about post-repair testing using the following words. Words: aftermarket, comprehensive, connector, data, diagnostics, DTC, erase, exact, freeze, grounds, installing, isolating, Monitor, OBD-II, perform, problem, repairs, resolved, retained, scan, terminals, test, testing, tighten, vehicle, verify After i n golgfi% the source of the kno blzm , the nfikg[ng should be made. The system should then be rechecked to __v, that the repair took care of the problem. This may involve road __4-¢¢ fif‘l; the vehicle in order to verify that the complaint has been nz,[oLV(d g When servicing or repairing Veh I'Cffi circuits, the following guidelines are important: e Do not connect gg':fcmahhl tocessories into an OBD-ll circuit. e Do not move or alter v from their original locations. o Always replace a relay in an OBD-lI circuit with an figgf replacement. Damaged relays should be thrown away, not repaired. e Make sure all fibm n a{ locks are in good condition and are in place. o After repairing connectors or connector fihm [n a[f , make sure the terminals are properly _nLﬂM_ and the connector is sealed. s When in )'a . n<___afastener for an electrical ground, be sure to it to the specified torque. Verification of repair is more (amb::h‘hi jvefor vehicles with OBD-Il system _dl q tq than earlier vehicles. Following a repair, the technician should _. k(b&m the following steps: 1 Review the fail records and the £ﬂm frame dfifi for the d +c that was diagnosed. Record the fail records or freeze frame data. 2 Usethe_ ScCan tool's clear DTCs or clear information functions to _Cn&jL; the DTCs. 3 Operate the _uehlgl_ within the conditions noted in the fail records or the freeze frame data. ,45)2{:%3 the status information for the specific DTC until the diagnostic __m og,'ﬂm associatt ith that DTC runs. 78. Service Advisor responsibilities and duties ﬂ{#hm‘nin(j ustomeq egpineracnts cnd mmAy in _ th ~ seladen ,77£ solohons Assessment 1 — Questioning — Written Version: 2.0 Created: May 2021 Assessment — AURETR124 Page 28 of 29 Scanned with CamScanner

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welfib!d/_ ignition engine management systems 79. manufacturer specifications and procedures or equivalent documentation v o Albt’{i@mi{onx £ ?hoaduhcf o o S;!i’(cialij}‘ i Al Anis ( .9 alcremd. 80. Importance of vehicle maintenance and servicing e inst woad accidents that may occon Jif Olou @4 malfunchion . 81. housekeeping procedures In automobile Remove jdeme Byom unde clean vh c'bn'llx' fhoe vehicle. Clear Goldeq, Assessment 1 - Questioning — Written Version: 2.0 Created: May 2021 Assessment - AURETR124 Page 29 of 29 Scanned with CamScanner

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