Unit of competency Outline
Date retreived
22/07/2026 8:56 AM AWST
22/07/2026 8:56 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Diagnose complex faults in light vehicle transmission and driveline systems
Diagnose complex faults in light vehicle transmission and driveline systems
Unit of competency
National Code
AURLTX4004
AURLTX4004
State Code
WF247
WF247
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
08/07/2013
Field of Education
030503 - Vehicle Mechanics
Original Release Date
08/07/2013
Nominal Hours
45
Description
This unit describes the performance outcomes required to diagnose complex faults in light vehicle transmission and driveline systems in order to initiate action to service, repair, replace or improve performance.The unit involves evaluating system performance and identifying possible operational anomalies.Faults may be mechanical, electrical, electronic or hydraulic by nature, requiring the application of complex diagnostic processes to resolve.Licensing, legislative, regulatory or certification requirements may apply to this unit in some jurisdictions. Users are advised to check with the relevant regulatory authority.
Notes
Elements and Performance Criteria
1. Identify and confirm the work requirement
- 1.1. Workplace instructions and reports are used to determine the nature and objective of system diagnosis requirements
- 1.2. Specifications for correctly functioning light vehicle transmission and driveline systems are accessed and interpreted
- 1.3. Workplace health and safety (WHS) requirements, equipment and system isolation requirements and personal protection needs, are observed and applied throughout the work
- 1.4. Effects of systemic deficiencies, discrepancies or faults in light vehicle transmission and driveline systems are identified and confirmed from direct or indirect evidence
- 1.5. Possible safety impacts of the work are considered and responded to according to regulatory and workplace procedures
2. Prepare to diagnose faults
- 2.1. Criteria for fault diagnosis are developed and adopted to meet the objective of the work
- 2.2. System performance achievements and discrepancies are identified from scrutiny of technical support information and available on-board diagnostic systems
- 2.3. Diagnostic methods, including complexity of diagnostic process, sequence, tests and testing process, are identified and selected from the range of available options
- 2.4. Testing equipment is obtained and prepared for application according to manufacturer, component supplier and workplace requirements
- 2.5. Tools and materials required to support the diagnostic process are identified, selected and prepared for use
3. Apply complex diagnostic process
- 3.1. Selected diagnostic processes are followed according to specifications and workplace procedures
- 3.2. Testing is carried out according to workplace procedures and manufacturer and component supplier specifications
- 3.3. Findings are verified, if necessary, by using reliable alternate or optional processes
- 3.4. Conclusions are drawn from findings and documented according to workplace requirements
- 3.5. Information and detail related to the evaluation of diagnosis is provided to the appropriate person or customer to confirm further action to be taken
RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Workplace health and safety (WHS) requirements:
are those prescribed under legislation, regulations, codes of practice, and workplace policies and procedures
may include:
protective clothing and equipment
use of tools and equipment
handling of material
use of fire-fighting equipment
first aid equipment
hazard control, including control of hazardous materials and toxic substances.
Faults may include:
faults with:
clutches
torque converters
mechanical and automatic transmissions
drive and power take-off shafts
differentials
mechatronic modules and multi-class bus systems
input sensors
output actuators
wiring harnesses
computer systems
indirect faults caused by the influence of external electrical and electronic systems, which may or may not be faulty in their primary operations
component specifications, component assembly, component damage and system modifications
mechanical and hydraulic system faults.
Tests may include:
wiring and connector integrity and the operation of input and output devices controlling electronic components and computers
data interpretation relating to direct, indirect and intermittent causes
brake fluid testing
on-road transmission and driveline efficiency testing
component tests.
Testing equipment may include:
analogue and digital multimeters
lab oscilloscopes
scan tools
test lights and test LEDs
pulse generators
manufacturer and component supplier testing equipment.
Diagnostic processes may include:
analysing manufacturer and component supplier specifications, schematics and operational procedures relating to transmission and driveline systems
six-step troubleshooting plan
discover-investigate-fix methodology.
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Workplace health and safety (WHS) requirements:
are those prescribed under legislation, regulations, codes of practice, and workplace policies and procedures
may include:
protective clothing and equipment
use of tools and equipment
handling of material
use of fire-fighting equipment
first aid equipment
hazard control, including control of hazardous materials and toxic substances.
Faults may include:
faults with:
clutches
torque converters
mechanical and automatic transmissions
drive and power take-off shafts
differentials
mechatronic modules and multi-class bus systems
input sensors
output actuators
wiring harnesses
computer systems
indirect faults caused by the influence of external electrical and electronic systems, which may or may not be faulty in their primary operations
component specifications, component assembly, component damage and system modifications
mechanical and hydraulic system faults.
Tests may include:
wiring and connector integrity and the operation of input and output devices controlling electronic components and computers
data interpretation relating to direct, indirect and intermittent causes
brake fluid testing
on-road transmission and driveline efficiency testing
component tests.
Testing equipment may include:
analogue and digital multimeters
lab oscilloscopes
scan tools
test lights and test LEDs
pulse generators
manufacturer and component supplier testing equipment.
Diagnostic processes may include:
analysing manufacturer and component supplier specifications, schematics and operational procedures relating to transmission and driveline systems
six-step troubleshooting plan
discover-investigate-fix methodology.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge.
A person who demonstrates competency in this unit must be able to:
interpret workplace instructions and locate and apply information
apply safety requirements, including the use of personal protective equipment
identify and select appropriate diagnosis processes to be performed
complete diagnosis of complex faults on a minimum of three different light vehicle light vehicle transmission and driveline systems with real or simulated faults
document and report outcomes and required actions of diagnosis of complex faults in light vehicle light vehicle transmission and driveline systems.
Context of, and specific resources for assessment
Competency is to be assessed in the workplace or a simulated workplace environment that accurately reflects performance in a real workplace setting.
Assessment is to occur:
using standard workplace practices and procedures
following safety requirements
applying environmental constraints.
Assessment is to comply with relevant:
regulatory requirements
Australian standards
industry codes of practice.
The following resources must be made available for the assessment of this unit:
workplace location or simulated workplace
vehicles with real or simulated light vehicle transmission and driveline system faults
tools and equipment appropriate for the diagnosis of complex faults in light vehicle transmission and driveline systems
technical reference information and workplace instructions.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of this Training Package.
Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with the application of required skills and knowledge.
Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure correct interpretation and application.
Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate the needs of diverse clients.
Assessment processes and techniques must be culturally sensitive and appropriate to the language, literacy and numeracy capacity of the candidate and the work being performed.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge.
A person who demonstrates competency in this unit must be able to:
interpret workplace instructions and locate and apply information
apply safety requirements, including the use of personal protective equipment
identify and select appropriate diagnosis processes to be performed
complete diagnosis of complex faults on a minimum of three different light vehicle light vehicle transmission and driveline systems with real or simulated faults
document and report outcomes and required actions of diagnosis of complex faults in light vehicle light vehicle transmission and driveline systems.
Context of, and specific resources for assessment
Competency is to be assessed in the workplace or a simulated workplace environment that accurately reflects performance in a real workplace setting.
Assessment is to occur:
using standard workplace practices and procedures
following safety requirements
applying environmental constraints.
Assessment is to comply with relevant:
regulatory requirements
Australian standards
industry codes of practice.
The following resources must be made available for the assessment of this unit:
workplace location or simulated workplace
vehicles with real or simulated light vehicle transmission and driveline system faults
tools and equipment appropriate for the diagnosis of complex faults in light vehicle transmission and driveline systems
technical reference information and workplace instructions.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of this Training Package.
Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with the application of required skills and knowledge.
Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure correct interpretation and application.
Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate the needs of diverse clients.
Assessment processes and techniques must be culturally sensitive and appropriate to the language, literacy and numeracy capacity of the candidate and the work being performed.
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| AXC32 | AURLTX004 | Diagnose complex faults in light vehicle automatic transmission and driveline systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J415 | AUR40212 | Certificate IV in Automotive Mechanical Diagnosis | Qualification |