AURTTA018 Carry out diagnostic procedures - Desklib

This written assessment task assesses knowledge of carrying out diagnostic procedures. Topics covered include preparing to diagnose faults, diagnosing faults, and completing work processes.

AURTTA018 Carry out diagnostic procedures
Student Assessment Agreement
Make sure you read through the assessments in this booklet before you fill out and sign the agreement below.
If there is anything that you are unsure of, consult your assessor prior to signing this agreement.
Have you read the assessment requirements for this unit?  Yes  No
Do you understand the requirements of the assessments for this unit?  Yes  No
Do you agree to the way in which you are being assessed?  Yes  No
Do you have any specific needs that should be considered?  Yes  No
If so, explain these in the space below.
Do you understand your rights to re-assessment?  Yes  No
Do you understand your right to appeal the decisions made in an assessment?  Yes  No
Student name
Student number
Student signature
Date
Qualification Code and
Title AUR30616: Certificate III in Light Vehicle Mechanical Technology
Unit Code and Title AURTTA018 Carry out diagnostic procedures
Assessor name
Assessor signature
Date
Assessment Tasks Cover Sheet
Student Declaration
To be filled out and submitted with assessment responses
 I declare that this task is all my own work and I have not cheated or plagiarised the work or colluded with any
other student(s).
 I understand that if I If I am found to have plagiarised, cheated or colluded, action will be taken against me
according to the process explained to me.
 I have correctly referenced all resources and reference texts throughout these assessment tasks.

AURTTA018 Carry out diagnostic procedures
Student name
Student ID number
Student signature
Date
Assessor declaration
 I hereby certify that this student has been assessed by me and that the assessment has been carried out
according to the required assessment procedures.
Assessor name
Assessor signature
Date
Assessment outcome S NS DNS Resubmission Y N
Feedback
Student result response
 My performance in this assessment task has been discussed and explained to me.
 I would like to appeal this assessment decision.
Student signature
Date
A copy of this page must be supplied to the office and kept in the student’s file with the evidence
Assessment 1 – Questioning – Written Assessment
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

AURTTA018 Carry out diagnostic procedures
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: ______ / ______ / 20______
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
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 Signature Date 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 carrying out
diagnostic procedures.
The topics that will be covered in the assessment are:
1. Prepare to diagnose faults
2. Diagnose faults
3. 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.

AURTTA018 Carry out diagnostic procedures
 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 36 questions comprising
of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed On average, the Assessment should take 2 – 4 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: -
 Work health and safety (WHS) and occupational health and safety (OHS)
requirements relating to carrying out diagnostic procedures, including procedures
for working safely with the system being tested
 Environmental requirements, including procedures for complying with requirements
specific to the system being tested
 Methods of gathering information, including questioning customers and effective
questioning techniques
 Types and applications of diagnostic strategies, including:
o Strategy-based diagnostics
o Flow charts
o Diagnosis charts
 Types, applications, limitations and operation of common diagnostic tools
 Methods of differentiating between fault symptoms and fault causes.
Assessment
conditions
Assessors 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 vehicles or machinery in which they have diagnosed faults,
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 detailing customer fault complaint
 Manufacturer vehicle or machinery specifications
 Three (3) different vehicles or machinery with system faults specified in the
performance evidence
 Tools, equipment and materials required for diagnosing system faults.
Resources required Learning Resources available to students include:
 Automotive Technology (A System Approach) 6th Edition – Chapters 2, 6, & 7
 Websites –
https://www.racv.com.au/wps/wcm/connect/racv/internet/primary/my+car/

AURTTA018 Carry out diagnostic procedures
environment
https://en.wikipedia.org/wiki/Flowchart
https://www.smartdraw.com/flowchart/
 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
 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.

AURTTA018 Carry out diagnostic procedures
Assessment 1 – Questioning
Written Assessment
1. Identify four (4) important items of personal safety when carrying diagnostic procedures on vehicles?
1 Airbags
2 Traction control
3 Electronic stability control
4 Antilock brakes
2. What precautions should be taken before disconnecting or removing a component of an EFI system when
carrying out diagnostic procedures?
Before removing any component of EFI wiring always disconnect the power by turning on the ignition switch off or
disconnecting the battery terminals. Further, while installing the battery, be careful not to incorrectly connect
positive as well as negative sides of cables.
3. Rings, necklaces, bracelets and watches should not be worn while carrying out diagnosing around electrical
systems. Why?
There is a need to remove such ornaments while carrying out a diagnosis around electrical system because it might
lead to increase the risk of short circuit and burns. Thus, batteries can produce a short circuit current high enough
to weld jewelry to metal.
4. What safety precautions must be observed when carrying out diagnosing procedures on drive shafts?
Must check all input and output end fittings in a vehicle.
Make sure that all mounting hardware are not loose by hand pressure, broken or missing, otherwise it lead to cause
adverse impact.
Inspect the yoke end of a cracks to minimize the chances of accidents.
5. When carrying out diagnostic procedures, following incorrect procedures have an impact on the environment
in terms of what?
The incorrect procedure have an impact upon the environment which means that external environment of the
organization may affected adversely.

AURTTA018 Carry out diagnostic procedures
6. Care should be taken with running engine in the automotive workplace when try to diagnosis faults. Why?
Care should be taken to all the running engines in an automotive workplaces because working with vehicles
engines can present different hazards which include contact with moving parts, electric shocks and carbon
monoxide poisoning. The care assists to reduce the chances of emission of such gases so that environment does
not got affected.
7. Whenever you need to have the engine running for diagnosis, the engine’s exhaust must be vented to the
outside. How is this done?
In order to get the vented to all engines, it is necessary to first decide what combustion engines need venting.
Use temporary or portable vent systems that will often suffice with portable genertors.
Multiple Choice question. Select the correct answer.
8. Describe what ‘Open Questions’ are?
A. Open questions ask for more information and encourage the customer to expand on what they have been
telling you.
B. Open questions ask for specific information from the customer and typically receive yes/no type
responses.
C. Open questions involve starting with general questions, and then homing in on a point in each answer and
asking more and more detail at each level.
D. Open questions try to lead the customer to your way of thinking.
Multiple Choice question. Select the correct answer.
9. Describe what ‘Closed Questions’ are?
A. Closed questions ask for more information and encourage the customer to expand on what they have
been telling you.
B. Closed questions involve starting with general questions, and then homing in on a point in each answer
and asking more and more detail at each level.
C. Closed questions ask for specific information from the customer and typically receive yes/no type
responses.
D. Closed questions try to lead the customer to your way of thinking.
10. What are three (3) reasons for asking question when carrying out diagnosis?
1 It helps to discover the new things that helps to enhance the knowledge and determine the answers.
2 Assist to understand the people in more better manner.

AURTTA018 Carry out diagnostic procedures
3 Assists to resolve the issues and implement the strategies better.
11. What do you understand by the term diagnosis?
It is all about identify and assessing the problems that might negatively affect any normal operation of a vehicle.
After diagnosis, vehicle may be repaired and handed over customers.
12. When diagnostic aids are not available or prove to be ineffective, most good technicians conduct a good
visual inspection and then take a logical approach to finding the cause of the problem. Logical diagnosis
should follow a logical sequence such as? Name the seven (7) steps and give a brief description on each
step.
1 Identify the problem: Here, the problem is exactly identified and assists to analyse the problem.
2 Establish a theory of probable cause: In the second stage, there is a need to evaluating the theory that lead to
cause a problem. This in turn helps to understand the problem in effective manner.
3 Test the theory of a probable cause: If the theory does not match with existing problem, then it affect the
results, so new theory has been implemented to determine the cause.
4 Establish the plan of action and determine potential effects: in this, the theory convert into a plan of action and
also determine the plan which helps to solve problem
5 Implement a plan or escalate: In this, there is a need to implement the final action of plan in order to proceed
further.
6 Verify full system: After implementation of a plan, there is a need to verify full system and keep the problem
from reoccurring.
7 Document findings, action and outcomes: once the verification performed, there is a need to document the
findings, action and outcomes.

AURTTA018 Carry out diagnostic procedures
13. Describe what a ‘Flow Chart’ is?
A flow chart is the type of diagram which represents an algorithm workflow which show the steps and their order by
connecting them with arrows. Thus, it is a diagrammatic representation that illustrated a solution to a given model.
14. Describe what a ‘Symptom-Based Diagnostic Charts’ is?
This is designed in order determine the problem which involves reading fault codes and its related parameters and
then referring service procedures that assists to examine root cause for repairs. With the help of this model, a
convenient exchange of symptom data perform with a greater probability of accurate and advanced diagnosis.
15. By looking at the ‘Symptom Chart’ below, chose the mostly likely fault for the three (3) symptoms
Symptoms Possible faults
A. The brake/stop lights are reported not
operating. On checking it is confirmed that
neither of the two bulbs or the row of high-
mounted LEDs are operating as the pedal is
pressed. All other systems work correctly
1. Two bulbs and 12 LEDs blown
2. Auxiliary systems relay open circuit
3. Brake light switch not closing
B. An engine fitted with full management
system tends to stall when running slowly. It
runs well under all other conditions and the
reported symptom is found to be intermittent
1. Fuel pump output pressure low
2. Idle control valve sticking
3. Engine speed sensor wire loose
C. The offside low beam headlight not
operating. This is confirmed on examination
and also noted is that the offside tail light
does not work
1. Two bulbs blown
2. Main lighting fusible link blown
3. Short circuit between off side tail and
low beam lights
A. Brake light switch not closing
B. Engine speed sensor wire loose
C. Short circuit between off side tail and low beam lights
16. Technicians need to be able to access a variety of information in order to diagnosis and repair faults on
vehicles. What are the four (4) most common sources of information available?
1 Reports: It is one of the most common method where technician can determine the information.

AURTTA018 Carry out diagnostic procedures
2 Internal search queries: It is all about searching on websites and determine the relevant information
3 Review and customer service inquiries: It assists to determine the exact issue faced by store in order to get
reliable information
4 Store locators: This source assists to identify the exact information to diagnose and repair faults
17. What is a scan tool?
Scan tool assists to provide a vehicle data and trouble codes stored within a vehicle computer network. Thus,
access to such codes and data direct the technician to the area of concern assists to determine the faults
18. Name eight (8) capabilities the scan tools may have?
1 Store and play back live data
2 Graph data
3 Display pending odes
4 Identify the trouble code definition
5 Offer troubleshooting procedures
6 Read generic and manufacturer specific trouble codes
7 Ability to read and clean codes
8 Diagnosis the problem
19. What is an engine analyser?
It is a multi-function instrument which is also known as scope that assists to diagnose an engine and its related
problems. Also, it can be used with gasoline and diesel powered vehicles mostly.
20. What information can an exhaust-gas analyser provide?
It helps in measuring 4 different types of gases which is oxygen, carbon mono-oxide, carbon dioxide and
hydrocarbons. Further, it also assists to calculating the lambda in order measure air/fuel ratio.

AURTTA018 Carry out diagnostic procedures
21. What is a ‘Multimeter’ and what can multimeters measure?
Multimeter is a measuring instrument which is actually assist to measure multiple electrical properties. Also, it
measure voltage resistance, current and that is why, also known as Vol-ohm-miliammerter.
22. What is a ‘Noid Light’?
Noid light refers a little incandescent bulb in a small socket and also has an end that is similar to pins and it
actually sold in many car accessories stores only.
23. How does a noid light operate?
It is a kit which contain different fuel injector connectors that is actually used on makes and majority. Also, it is not
necessary that all the cars have same fuel injectors connector type. Thus, a fuel injector noid light will assist to
troubleshoot a misfire so that no fuel issues may arises.
24. What type of information can be provided by a vacuum gauge?
Vacuum gauge is used in pressure measurement and also gas pressure can be monitored directly or indirectly.
25. How do you measure vacuum in an engine?
The standard unit for measuring vacuum is inches of mercury and measure the difference in air pressure from
inside of intake manifold. Thus, a difference of 1 pound per square inch in pressure will move a column of mercury
by 2.03 inches.

AURTTA018 Carry out diagnostic procedures
26. A fuel pressure gauge is essential for diagnosing fuel injection systems. What does it check?
It check the operation of fuel pressure regulator in order to ensure that it changes the line pressure and also
response in engine vacuum.
27. Many sensors, used in a computer-controlled circuit, send digital information back to the computer. What test
equipment should be used?
Electronic test equipment
28. What is a ‘Logic Probe’?
It is a low cost hand held test probe which is used for analysing and troubleshooting the logical states where two
Boolean used i.e. 0 and 1 within a digital circuit. It is also used to indicate a logic or digital low.
29. Explain how a ‘Logic Probe; operates?
This will indicate which lines are high, low and carrying a signal. Thus, by understanding the connections, it will be
easy to interpret the results in line with a circuit to find out whether they are acting correctly or not.
Before that, there is a need to understand the three connections to the logic i.e. black lead with crocodile clip, red
lead with crocodile clip and probe.
30. What is the difference between “Cause” and “Effect” as far as a problem is concerned?
Here, the cause can be a person or a situation which can be result in something whereas an effect is a result of an

AURTTA018 Carry out diagnostic procedures
actions of a person or outcome of some chains of an event that have already happened.
Multiple Choice question. Select the correct answer.
31. What could be the ‘Fault’ (cause) for the ‘Engine will not crank’ (effect)?
A. Starter motor fault.
B. Dirty battery terminals.
C. Starter motor circuit fault.
D. All the answers are correct.
Multiple Choice question. Select the correct answer.
32. What could be the ‘Fault’ (cause) for ‘Engine overheats’ (effect)?
A. Lack of coolant.
B. Loss of compression.
C. Fuel pump defective.
D. Rundown battery.
Multiple Choice question. Select the correct answer.
33. What could be the ‘Fault’ (cause) for ‘Engine lacks power’ (effect)?
A. Ignition defective.
B. Fuel system defective.
C. Engine management sensor fault.
D. All the answers are correct.
Multiple Choice question. Select the correct answer.
34. What could be the ‘Fault’ (cause) for ‘Engine excessive fuel consumption’ (effect)?
A. Rundown battery.
B. Fuel pump defective.
C. Coolant leaks.
D. None of these answers are correct.
Multiple Choice question. Select the correct answer.
35. Which source of information will give you the most detail about carrying out diagnostic on the vehicle you are
working on?
A. Workshop manual.

AURTTA018 Carry out diagnostic procedures
B. Owner’s manual.
C. Google.
D. Textbooks.
36. Why is it very important that the Job Card is completed correctly?
It is the detailed list of a work where time taken and labor involved along with necessary materials. Thus, job card is
actually used to allocate the labour as well as material for a specific particular mechanic. Moreover, it is also helps
in calculating the payment to mechanics.