Unit of competency Outline

Date retreived
22/07/2026 5:53 AM AWST

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Diagnose and repair high voltage traction motors in battery electric vehicles

Diagnose and repair high voltage traction motors in battery electric vehicles

Unit of competency
National Code
AURETH4005
State Code
WC275
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
17/01/2013
State Implementation and Classification
Approved Date
08/08/2013
Field of Education
030505 - Automotive Electrics And Electronics
Original Release Date
08/08/2013
Nominal Hours
50
Description
This unit describes the performance outcomes required to diagnose and repair high voltage (HV) traction motors in battery electric vehicles (BEVs). 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) requirementsand appropriate precautions are identified and applied
  • 1.3. Repair methods for the specific work requirement are 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 diagnosis and repair of the traction motor are established
2. Diagnose traction motor operation
  • 2.1. Traction motor operational tests and checks are carried out using manufacturer specifications and test procedures
  • 2.2. Faults with the traction motor are diagnosed and identified
  • 2.3. Test results are recorded
3. Repair traction motor
  • 3.1. Traction motor repair information is accessed
  • 3.2. Test results are compared with manufacturer specifications to decide on corrective actions
  • 3.3. Traction motor and components are removed, replaced, repaired and adjusted as required
  • 3.4. Traction motor is re-tested for correct operation once repaired
  • 3.5. Replacement, repair or adjustment procedures 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 or repair order is completed according to workplace requirements
  • 4.3. Client report is prepared on the outcomes of the diagnosis and repair of the traction motor 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
verbal, written and graphical instructions issued by authorised internal and external persons
workplace specifications and requirements.
WHS requirementsmay 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:
damage to traction motor windings
insulation resistance of traction motor windings
routing and damage of HV cabling
traction motor operation.
Corrective actions may include:
replacing cable connections
replacing system components
replacing the traction motor
tightening connections.
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 traction motor performance against manufacturer specifications
diagnose and replace, repair or adjust traction motor as required to correct deficiencies
complete relevant documentation for the diagnosis and repair of the traction motor.
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 low voltage (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
AXE15 AURETH005 Diagnose and repair high voltage traction motors in battery electric vehicles Unit of competency