Unit of competency Outline
Date retreived
22/07/2026 12:13 PM AWST
22/07/2026 12:13 PM 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 and repair heavy trailer electronically controlled roll stability systems
Diagnose and repair heavy trailer electronically controlled roll stability systems
Unit of competency
National Code
AURHTR3005
AURHTR3005
State Code
WF164
WF164
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
07/08/2013
Field of Education
030505 - Automotive Electrics And Electronics
Original Release Date
07/08/2013
Nominal Hours
20
Description
This unit describes the performance outcomes required to diagnose and repair electronically controlled roll stability systems fitted to trailers over 4.5 tonnes. It involves diagnosing deviations from correct operation, repair operations of roll stability system components and associated systems, and post-repair testing procedures.Licencing, 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. Prepare to diagnose and repair a heavy trailer roll stability system
- 1.1. Workplace instructions are used to determine job requirements
- 1.2. Workplace health and safety (WHS) requirements are observed and applied throughout the work
- 1.3. Procedures and information are sourced and interpreted
- 1.4. Diagnosis options are analysed and those most appropriate to the circumstances are selected
- 1.5. Appropriate diagnostic tools and equipment are selected and prepared
2. Diagnose a heavy trailer roll stability system
- 2.1. Diagnostic tests are performed according to workplace procedures and without causing damage to components or systems
- 2.2. Faults are identified from diagnostic test results and causes of faults are determined
- 2.3. Diagnosis findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments
3. Repair a heavy trailer roll stability system
- 3.1. Repair options are analysed and those most appropriate to the circumstances are selected
- 3.2. Appropriate tools, techniques and materials are selected and prepared
- 3.3. Repairs and component replacements and adjustments are carried out without causing damage to components or systems and according to workplace procedures and manufacturer and component supplier specifications
- 3.4. Post-repair testing is carried out according to workplace procedures and relevant legislation
4. Clean up work area and finalise work processes
- 4.1. Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use
- 4.2. Tools and equipment are checked and stored according to workplace expectations
- 4.3. Workplace documentation is processed according to workplace procedures
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, 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 instructions may include:
computer-generated instructions
verbal instructions
written instructions.
Job requirements may include:
heavy trailer roll stability system diagnosis and repair methods, processes and equipment
Workplace health and safety 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.
Procedures and information may include:
verbal, written and graphical instructions
signage
work schedules, plans and specifications
work bulletins or memos
material safety data sheets (MSDS)
diagrams or sketches
safe work procedures relating to the repair and replacement of heavy trailer roll stability systems
regulatory and legislative requirements relating to the automotive industry
Australian Design Rules
Engineer’s design specifications and instructions
organisational work specifications and requirements
instructions issued by authorised workplace or external persons
Australian standards
heavy trailer roll stability service requirements and repair manuals.
Diagnostic tests may include:
isolation of faults
visual inspection of heavy trailer roll stability components
component inspection and evaluation.
Faults may include:
electrical and electronic component faults
electronically-controlled braking system faults.
Repair options may include:
component repair procedures, including
removal, replacement and adjustment procedures
dismantle, repair, re-assembly and adjustment procedures.
Post-repair testing may include:
on-board diagnostic system assessment procedures.
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, 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 instructions may include:
computer-generated instructions
verbal instructions
written instructions.
Job requirements may include:
heavy trailer roll stability system diagnosis and repair methods, processes and equipment
Workplace health and safety 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.
Procedures and information may include:
verbal, written and graphical instructions
signage
work schedules, plans and specifications
work bulletins or memos
material safety data sheets (MSDS)
diagrams or sketches
safe work procedures relating to the repair and replacement of heavy trailer roll stability systems
regulatory and legislative requirements relating to the automotive industry
Australian Design Rules
Engineer’s design specifications and instructions
organisational work specifications and requirements
instructions issued by authorised workplace or external persons
Australian standards
heavy trailer roll stability service requirements and repair manuals.
Diagnostic tests may include:
isolation of faults
visual inspection of heavy trailer roll stability components
component inspection and evaluation.
Faults may include:
electrical and electronic component faults
electronically-controlled braking system faults.
Repair options may include:
component repair procedures, including
removal, replacement and adjustment procedures
dismantle, repair, re-assembly and adjustment procedures.
Post-repair testing may include:
on-board diagnostic system assessment procedures.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, required Skills and Knowledge, the 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:
observe safety procedures and requirements
select methods and techniques appropriate to the circumstances
complete preparatory activity in a systematic manner
diagnose and repair a range of heavy trailer roll stability systems
diagnose and repair heavy trailer roll stability systems according to workplace, manufacturer and component supplier requirements
present vehicle in a condition that complies with workplace requirements.
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
heavy trailer with roll stability faults relevant to the qualification being sought
equipment appropriate for the testing of heavy trailer roll stability systems
specifications and workplace instructions
tools appropriate for the repair, replacement and adjustment of heavy trailer roll stability systems.
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, the 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:
observe safety procedures and requirements
select methods and techniques appropriate to the circumstances
complete preparatory activity in a systematic manner
diagnose and repair a range of heavy trailer roll stability systems
diagnose and repair heavy trailer roll stability systems according to workplace, manufacturer and component supplier requirements
present vehicle in a condition that complies with workplace requirements.
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
heavy trailer with roll stability faults relevant to the qualification being sought
equipment appropriate for the testing of heavy trailer roll stability systems
specifications and workplace instructions
tools appropriate for the repair, replacement and adjustment of heavy trailer roll stability systems.
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 |
|---|---|---|---|
| AXD20 | AURHTR005 | Diagnose and repair heavy commercial trailer electronically controlled roll stability systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J406 | AUR31812 | Certificate III in Heavy Commercial Trailer Technology | Qualification |