Unit of competency Outline
Date retreived
22/07/2026 9:10 AM AWST
22/07/2026 9:10 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 and repair traction motor speed control device in battery electric vehicles
Diagnose and repair traction motor speed control device in battery electric vehicles
Unit of competency
National Code
AURETH4004
AURETH4004
State Code
WC274
WC274
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
30
Description
This unit describes the performance outcomes required to repair the traction motor speed control device in battery electric vehicles (BEVs), which may be called a digital motor controller (DMoC) or motor control unit (MCU) in some vehicles. It involves working with high voltage (HV) and low voltage (LV) alternating current (AC) and direct current (DC) automotive electrical components. Importance is placed on the application of HV safety procedures.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. Prepare for repair operations
- 1.1. Procedures and information relevant to the task are sourced and work requirements confirmed
- 1.2. Workplace health and safety (WHS) requirements and appropriate precautions are identified and applied
- 1.3. Method most appropriate for the specific circumstances is selected and prepared for
- 1.4. Tools and testing equipment necessary to conduct the work are assembled
- 1.5. Technical and/or calibration requirements for testing and repair of the traction motor system are established
2. Diagnose motor control device
- 2.1. Tests and checks on motor controller cooling system are carried out using manufacturer specifications and test procedures
- 2.2. Motor controller is disconnected using correct procedure
- 2.3. Exposed live HV and LV connections and wiring are labelled with appropriate warning tags or signs
- 2.4. Controller settings and diagnostic information are retrieved using appropriate equipment
- 2.5. Tests and checks on motor controller are carried out to ensure correct operation
- 2.6. Test results are recorded
3. Repair or replace motor controller
- 3.1. Motor controller test results are compared with manufacturer specifications to decide on appropriate corrective action
- 3.2. Motor controller is repaired or replaced as required
- 3.3. Repaired or replacement motor controller is re-tested for correct operation
- 3.4. Motor controller is reconnected using correct procedure
- 3.5. Replacement or repairs carried out are recorded
4. Complete repair operations
- 4.1. Work area is tidied, and tools and equipment replaced according to workplace requirements
- 4.2. Job card is completed according to workplace requirements
- 4.3. Client report is prepared on the outcomes of the service and repair of the motor controller according to workplace requirements
- 4.4. Vehicle is prepared for return to the client
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.
Procedures and information may include:
Australian standards
diagrams and sketches
engineer or manufacturer design specifications and instructions
industry codes of practice
parts catalogues
verbal, written and graphical instructions issued by authorised internal and external persons
workplace specifications and requirements.
WHS requirements may include:
elimination of hazardous materials and substances
first aid equipment
following emergency procedures
hazard and risk control
material safety data sheets (MSDS)
personal protective equipment (PPE) and clothing
safety equipment
techniques for manual handling, including shifting, lifting and carrying.
Appropriate precautions may include:
analysing task to define risk
applying electrical safety precautions, such as:
“one hand rule”
live system warning tags or signs
isolating the HV battery electrical supply
depowering the vehicle
using PPE, such as:
electrical safety gloves 1000V
HV insulating mats (Australian standards rated).
Tests and checks may include:
computer interface or communication device to retrieve controller settings and diagnostic information
controller input/output signals and voltages
motor controller cooling system.
Appropriate corrective action may include:
repairing the motor controller
replacing the motor controller.
Workplace requirements may include:
industry codes of practice
manufacturer specifications
quality policies and procedures
safe work procedures
sustainability, environment, equal opportunity and anti-discrimination policies and procedures
workplace recording and reporting 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.
Procedures and information may include:
Australian standards
diagrams and sketches
engineer or manufacturer design specifications and instructions
industry codes of practice
parts catalogues
verbal, written and graphical instructions issued by authorised internal and external persons
workplace specifications and requirements.
WHS requirements may include:
elimination of hazardous materials and substances
first aid equipment
following emergency procedures
hazard and risk control
material safety data sheets (MSDS)
personal protective equipment (PPE) and clothing
safety equipment
techniques for manual handling, including shifting, lifting and carrying.
Appropriate precautions may include:
analysing task to define risk
applying electrical safety precautions, such as:
“one hand rule”
live system warning tags or signs
isolating the HV battery electrical supply
depowering the vehicle
using PPE, such as:
electrical safety gloves 1000V
HV insulating mats (Australian standards rated).
Tests and checks may include:
computer interface or communication device to retrieve controller settings and diagnostic information
controller input/output signals and voltages
motor controller cooling system.
Appropriate corrective action may include:
repairing the motor controller
replacing the motor controller.
Workplace requirements may include:
industry codes of practice
manufacturer specifications
quality policies and procedures
safe work procedures
sustainability, environment, equal opportunity and anti-discrimination policies and procedures
workplace recording and reporting procedures.
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:
comply with WHS requirements and safe work practices
ensure electrical and mechanical integrity of components and system is maintained when performing tests
check the motor control device performance against manufacturer specifications
diagnose and repair or replace motor control device as required to correct deficiencies
complete relevant documentation for the testing and repair of the motor control device.
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.
Competency is to be assessed using a BEV that uses HV and LV AC/DC electrical systems. Where simulation is used, an operational BEV must be included in the simulation.
The following resources must be made available for the assessment of this unit:
appropriate PPE
a BEV
manufacturer specifications for the BEV
testing equipment
full range of essential tools and equipment
workplace documentation.
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:
comply with WHS requirements and safe work practices
ensure electrical and mechanical integrity of components and system is maintained when performing tests
check the motor control device performance against manufacturer specifications
diagnose and repair or replace motor control device as required to correct deficiencies
complete relevant documentation for the testing and repair of the motor control device.
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.
Competency is to be assessed using a BEV that uses HV and LV AC/DC electrical systems. Where simulation is used, an operational BEV must be included in the simulation.
The following resources must be made available for the assessment of this unit:
appropriate PPE
a BEV
manufacturer specifications for the BEV
testing equipment
full range of essential tools and equipment
workplace documentation.
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 |
|---|---|---|---|
| AXE17 | AURETH004 | Diagnose and repair traction motor speed control systems in battery electric vehicles | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J419 | AUR40612 | Certificate IV in Automotive Electrical Technology | Qualification |
| J415 | AUR40212 | Certificate IV in Automotive Mechanical Diagnosis | Qualification |