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AURETR028 Diagnose and repair instruments and warning systems

26 June 2023 06:57 AM | UPDATED 10 months ago

AURETR028 Diagnose and repair instruments and warning systems :

AURETR028 Diagnose and repair instruments and warning systems
AURETR028 Diagnose and repair instruments and warning systems
Assessment 1 – Questioning – Written Assessment
Student Name Student ID Number 
Unit Start Date Unit End Date 
Assessment Due Date Date Submitted 
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 Procedureon their website at (insert website address)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 address)Yes / No
I have access to all required resources?Yes / No
Cheating & Plagiarism Declaration
Student Declaration: In accordance with the RTO’s 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:______ / ______ / 20______
AURETR028 Diagnosing and repair instruments and warning systems

Assessment ResultsSatisfactoryorNot Yet Satisfactory
(Please circle the assessment result for this task)
Feedback to Student – Please provide general feedback on the Student’s performance
 
 
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:Assessor’s Name:
Student SignatureDateAssessor SignatureDate
AURETR028 Diagnosing and repair instruments and warning systems

Student Guide for Written Knowledge Assessment
Overview of AssessmentThis is a written assessment task you will be assess on your knowledge of diagnosing and repairing instruments and warning systems. The topics that will be covered in the assessment are: Prepare to diagnose and repair instruments and warning systemsDiagnose instruments and warning system Repair instruments and warning system 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 assessedTo complete this written assessment, you will need to answer the 58 questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowedOn average, the Assessment should take 4 – 6 hours to complete.
LocationThis theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making rulesTo 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: – Work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing instruments and warning systems, including procedures for working with high current wiring systems Operating principles of instruments and warning systems and associated components, including types of instruments, gauges and warning systems Application, purpose and operation of instruments and warning systems and components, including: Instrument panel construction Panel illumination Magnetic and thermal gauges Voltage regulators Mechanical gauges Digital electronic gauges and systems Warning lights and indicators Diagnostic testing procedures for instruments and warning systems, including: Accessing and interpreting scan tool system data, including: Diagnostic trouble codes (DTCs) Live data Freeze frame data Waveforms Using diagnostic flow charts Testing electrical systems, including procedures for: Accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiring Checking resistance, current flow and voltage instruments and warning systems Repair procedures for instruments and warning systems, including: Tightening connections Replacing faulty or damaged cable connections Removing and replacing faulty or damaged components Post-repair testing procedures for instruments and warning systems, including: DTC clearing procedures Checking for electrical connector mating Undertaking static and dynamic performance tests of instruments and warning systems, including test-driving procedures.
Assessment conditionsAssessors MUST satisfy NVR/AQTF assessor requirements.  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 instruments and warning 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 instrument and warning system specifications Two different vehicles, vessels or machinery with instrument and warning system faults Diagnostic equipment for instruments and warning systems, including multimeter Tools, equipment and materials appropriate for repairing vehicle, vessel or machinery instruments and warning systems. 
Resources requiredLearning Resources available to students include: Automotive Technology (A System Approach) 6th Edition – Chapters 7, 16 & 21Websites –Trainer Handouts
Results/Re-assessmentThe 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 incorrectFeedback will be provided on either resultWhere 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 documentWhere 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 AdjustmentIf the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.
AURETR028 Diagnosing and repair instruments and warning systems

Assessment 1 – Questioning
Written Assessment
  1. Identify three (3) important items of personal safety when diagnose faults in vehicle instruments and warning systems

Multiple Choice question. Selected the correct answer.

  • Many instruments and warning devices are linked to the body control module and multiplexing network. Before troubleshooting a gauge or warning system, check the ________ to identify any special procedures or precautions.
  1. Service information.(Correct answer)
  2. Google.
  3. Internet forums.
  4. All these answers are correct.

Multiple Choice question. Selected the correct answer.

  • Be aware that many of the warning and indicator lamps found on today’s vehicles are triggered by a PCM or BCM. Often, they are part of the multiplexed system. With this in mind, always refer to the testing methods recommended by the manufacturer before testing these systems. Why must you follow methods recommended by the manufacturer?
  1. Using conventional testing methods on a computerized system won’t destroy any part or all of the system.
  2. Using conventional testing methods on a computerized system may destroy part or all of the system.(Correct answer)
  3. Using conventional testing methods on a computerized system will enhance any part or all of the system.
  4. All these answers are correct.
  • 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. What should you do first and why?
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question. Selected the correct answer.

  • ________ provide valuable information to the driver concerning the vehicle’s various systems.
  1. Instrument gauges.
  2. Warning lights.
  3. Indicators.
  4. All these answers are correct.(Correct answer)

Multiple Choice question. Selected the correct answer.

  • A ________ odometer is typically driven by the speedometer drive cable and a set of gears.
  1. Electrical.
  2. Mechanical. (Correct answer)
  3. Digital.
  4. All these answers are correct.

True or False question

  • The sending unit for the engine coolant temperature gauge is typically an NTU thermistor.
☐ Trueor [1] False

Multiple Choice question. Selected the correct answer.

  • Which of the following is NOT a type of gauge design?
  1. Thermal.
  2. Balancing coil.
  3. Variable resistance.
  4. Magnetic bobbin.(Correct answer)

Multiple Choice question

  • The indicator needle on a speedometer is held to the zero position by.
  1. Magnetic force.
  2. The weight of the needle.
  3. The speedometer cable.
  4. A hairspring. (correct answer)
  1. Describe how a fuel level sending unit operates.
 
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

  1. What is the difference between a warning light and an indicator light?
 
 
 

Multiple Choice question. Selected the correct answer.

  1. All electrical gauges require an input from either a ________ or sensor.
  1. Sending unit.
  2. Actuator.
  3. Solenoid.
  4. All these answers are correct. (Correct answer)

Multiple Choice question. Selected the correct answer.

  1. The two [2] types of electrical analogue gauges are magnetic and ________.
  1. Light-Emitting Diode (LED).
  2. Thermal or Bimetallic Gauge.(Correct answer)
  3. Liquid Crystal Diode (LCD).
  4. All these answers are correct.

Multiple Choice question. Selected the correct answer.

  1. The ________ gauge indicates engine speed [RPM].
  1. Tachometer.
  2. Temperature.(Correct answer)
  3. Speedometer.
  4. All these answers are correct.

Multiple Choice question

  1. Which of the following is NOT a component of an analogue gauge system?
  1. Thermoelectric gauge.
  2. Sending unit.
  3. Light-emitting diode.(Correct answer)
  4. Instrument voltage regulator.

Multiple Choice question

  1. Fuel range, ETA [estimated time of arrival], fuel economy and distance to destination are common types of data that are displayed on the ________.
  1. BCM [Body Control Module].
  2. Driver information centre.(Correct answer)
  3. Heads-up display.
  4. All the answers are correct.

Multiple Choice question

  1. Which of the following is not a type of digital display?
  1. LED [light-emitting diode].
  2. LCD [light crystal diode].
  3. Balancing coil. (Correct answer)
  4. Vacuum fluorescent.

Multiple Choice question

  1. The vehicle speed sensor [VSS] for an electronic speedometer on an RWD vehicle is typically mounted _____.
  1. On the right front wheel hub.
  2. On the left front wheel hub.
  3. On the right rear axle hub.
  4. On the transmission output shaft. (Correct answer)

Multiple Choice question

  1. An NTC thermistor is used in a _____.
  1. Oil pressure sending unit.
  2. Engine coolant temperature sensor. (Correct answer)
  3. Fuel gauge sending unit.
  4. All the answers are correct.
  • How does a Heads-Up Display [HUD] display work?
 
 
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

  • What is the function of an IVR [instrument voltage regulator]?
 
 
AURETR028 Diagnose and repair instruments and warning systems

Multiple Choice question. Selected the correct answer.

  • The correct term for a modern dashboard is ________.
  1. Dash pad.
  2. Crash pad.
  3. Instrument panel.(Correct ans)
  4. All these answers are correct.

Multiple Choice question

  • The Park distance control system warns the driver that the vehicle is close to an obstacle by _____.
  1. An audible signal that increases in frequency as the vehicle gets closer.
  2. The ABS system automatically applying the brakes when the vehicle gets too close.
  3. Both “an audible signal that increases in frequency as the vehicle gets closer” and “the ABS system automatically applying the brakes when the vehicle gets too close”.(Correct answer)
  4. Neither “an audible signal that increases in frequency as the vehicle gets closer” nor “the ABS system automatically applying the brakes when the vehicle gets too close”.

Multiple Choice question

  • Which of the following is NOT connected to the tone generator [chime module]?
  1. Headlight switch. (Correct  answer)
  2. Ignition key switch.
  3. Seat belt switch.
  4. Park / Neutral safety switch.

Multiple Choice question

  • In an NTC-type thermistor, when the temperature is high, the resistance is _____.
  1. Zero.
  2. Low. (Correct answer)
  3. High.
  4. Infinite.

True or False question

  • No matter what they look like, the instrumentation must be easy to read and give accurate information. Instrument gauges, warning lights, and indicators provide valuable information to the driver concerning the vehicle’s various systems.
☐rueor☐ False
AURETR028 Diagnosing and repair instruments and warning systems

True or False question

  • An instrument panel is a design element for the interior of a vehicle. It is an assembly that expands across the interior width of the vehicle and contains a glove compartment, air ducts and registers, air bags, various driver information displays, and entertainment systems
☐Trueor☐ False
  • Name the two [2] basic types of information displays?

True or False question

  • Most modern vehicles have a warning system that alerts the driver when the driver’s door is opened when the headlights or parking lights are turned on
☐ trueor☐ False
AURETR028 Diagnosing and repair instruments and warning systems

  • Consider the three [3] types of lighting circuits within the instrument cluster and their function.
 
  • Name the two [2] different type of gauges below.
Diagram

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Description automatically generated
                                                    
  • Describe how an ammeter magnetic gauge operates.
 
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

  • How does a bimetallic or thermal gauge operate?
 
 
 
 
 

Multiple Choice question

  • The typical magnetic gauge receives _____ volts from the IVR.
  1. 2.0.
  2. 5.0.
  3. 8.0.
  4. 12.0. (Correct answer)

True or False question

  • On most new vehicles, the action of an ECT [engine coolant temperature] sensor can NOT be monitored on a scan tool.
☐ TrueorFalse
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • A universal gauge checker can be used to check the operation of the _____.
  1. Gauge unit.
  2. Instrument voltage regulator.
  3. Both “gauge unit” and “instrument voltage regulator”. (Correct answer)
  4. Neither “gauge unit” and “instrument voltage regulator”.

Multiple Choice question

  • An oil pressure sending unit and engine coolant temperature sending unit may be tested with an ________.
  1. Ohmmeter.
  2. Testlight.
  3. Ammeter.
  4. All these answers are correct. (Correct answer)
  • Identify various causes of intermittent electrical/electronic problems.
   
 
 
AURETR028 Diagnosing and repair instruments and warning systems

  • What basic devices should be checked while diagnosing gauge/indicator failures?
 
 

True or False question

  • To extract DTC trouble code, a scan tool can be used.
☐trueor☐ False
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • A technician is testing a connector in a circuit with a voltmeter. With the power on in the circuit, the meter reads 12-volts when the test leads are placed on each side of the connector. This indicates that the connector.
  1. Is shorted to ground.
  2. Is open.
  3. Is good. (Correct answer)
  4. Has current flowing through it.

Fill in the missing words

  • Place the missing words to complete the statement about the tools and steps required to test a fuel gauge sender unit.

Missing Words: DMM, float, fuel, position, positive, result, service, stop, unit

  1. The tools required to perform this task are a DMM, jumper wires and a _______________ manual.
  2. Select the ohmmeter function of the ______________.
  3. Connect the DMM’s negative test lead to the ground terminal of the sending ______________.
  4. Connect the meter’s _____________ lead to the variable resistor terminal.
  5. Holding the sender unit in its normal ______________, place the float rod against the empty stop.
  6. Read the ohmmeter and check the ______________ with the specifications.
  7. Slowly move the _____________ toward the full stop while observing the ohmmeter. The resistance change should be smooth and consistent.
  8. Check the resistance value while holding the float against the full ______________. Check the results with the specifications.
  9. Check the float to be sure it is not filled with ____________, distorted, or loose.
  • Referring to the 2016 Mazda MX5 workshop manual, what are the nine [9] possible causes that could logged DTC U3003:16 Low Power Supply Voltage Input to Instrument Cluster, in the instrument cluster?
 
 
 
 
 
 
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • Referring to the 2016 Mazda MX5 workshop manual, when following DTC U3003:16 Low Power Supply Voltage Input to Instrument Cluster test, in STEP 5, you must verify instrument cluster power supply voltage. If you were using Mazda M-MDS diagnostic tool, which PID do you need to display to check that the Instrument Cluster Power Supply Voltage Input is correct?
  1. PCM.
  2. VPWR. (Correct answer)
  3. ETC.
  4. SPEEDOMTR.

Multiple Choice question

  • Referring to the 2016 Mazda MX5 workshop manual, when following DTC U3003:16 Low Power Supply Voltage Input to Instrument Cluster on a 2016 Mazda MX5 and you check the Freeze Frame Data and you notice the Instrument Cluster voltage was at 8-volts when the DTC U3003:16 was logged, but the Instrument Cluster seems to be working fine now? What could be the fault. Select all the correct answers.
  1. Generator malfunction.
  2. Open circuit in wiring harness between IG1 relay terminal C and instrument cluster terminal S.
  3. Short to ground in wiring harness between METER1 10A fuse and instrument cluster terminal S.
  4. All the answers are correct. (Correct answer)
  • Referring to the 2016 Mazda MX5 workshop manual, describe the four [4] step process to carry out an ODDTC Self-Test on 2016 Mazda MX5 instrument cluster?
 
 
 
 
 
 
 
 
 
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • Which ‘Live’ or ‘Freeze Frame Data’ PID would you check, when a vehicle tachometer is inoperative?
  1. MAR.
  2. ECT.
  3. RPM. (Correct answer)
  4. All the answers are correct.
  • Some of the vehicle speedometer’s use wheel speed sensor information to indicate the vehicle speed. Looking at the wheel speed sensor waveform below, answer the different fault waveforms?
Text, letter

Description automatically generated 
 
 
 
 
  • From the diagnostic flow chart below, what is the first STEP after the vehicle arrives to your workplace and the last STEP after you repair the customer compliant?
Diagram

Description automatically generated
AURETR028 Diagnosing and repair instruments and warning systems

First Step:
 
Last Step:
 
AURETR028 Diagnosing and repair instruments and warning systems

  • When working with connectors, never pull on the wires to separate the connectors. Explain why?
 
 
 

True or False question

  • If there is damage or loose to 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 replaced.
☐ TrueorFalse
AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • When replacing a section of the wiring harness to the instrument cluster, you need to ________ the locking tang to remove the electrical terminal from the electrical connector.
  1. Depressing. (Correct answer)
  2. Breaking.
  3. Cutting.
  4. All the answers are correct.
  • Referring to the 2016 Mazda MX5 workshop manual, when removing the 2016 Mazda MX5 instrument cluster. What Caution must you be aware of?
 
 
 
 
AURETR028 Diagnose and repair instruments and warning systems

True or False question

  • Referring to the 2016 Mazda MX5 workshop manual, when removing and replacing the instrument cluster on the 2016 Mazda MX5, you don’t need to carry out instrument cluster configuration.
☐ Trueor☐ False
AURETR028 Diagnose and repair instruments and warning systems

AURETR028 Diagnosing and repair instruments and warning systems

  • Referring to the 2016 Mazda MX5 workshop manual, describe the eight [8] process to clear DTC’s on 2016 Mazda MX5 instrument cluster
 
 
 
 
 
 
 
 
AURETR028 Diagnose and repair instruments and warning systems

True or False question

  • You should check for the correct operation of the following instrument panel gauges by:

Fuel gauge

  • Indicates the level of fuel remaining in the fuel tank. When the fuel is added, the gauge slowly changes to the new fuel level after the ignition is turned on.

Temperature gauge

  • Indicates the temperature of engine coolant when the ignition switch is in the “ON” position and the engine is cold and at operating temperature.
[2] Trueor☐ False
AURETR028 Diagnose and repair instruments and warning systems

AURETR028 Diagnosing and repair instruments and warning systems

Multiple Choice question

  • When retesting the speedometer or odometer after repairs, you can ________ to check speedometer or odometer.
  1. Spin the tires or drive the vehicle. (Correct answer)
  2. Move the gear lever from park drive with the brakes applied.
  3. Drive the vehicle in reverse.
  4. All the answers are correct.

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