Unit of competency Outline

Date retreived
22/07/2026 7:05 AM AWST

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Diagnose and repair traction motor speed control systems in battery electric vehicles

Diagnose and repair traction motor speed control systems in battery electric vehicles

Unit of competency
National Code
AURETH104
State Code
OCK23
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
13/11/2020
View on TGA
State Implementation and Classification
Approved Date
31/03/2021
Field of Education
030505 - Automotive Electrics And Electronics
Original Release Date
31/03/2021
Nominal Hours
30
Description
This unit describes the skills and knowledge required to diagnose and repair faults in the traction motor speed control systems of battery electric vehicles (BEVs). These systems may be referred to as digital motor controllers (DMCs) or motor control units (MCUs). The unit involves preparing for the task, sourcing a diagnostic testing strategy, diagnosing the cause of the fault, carrying out the repair, performing post-repair testing, and completing workplace processes and documentation. Importance is placed in the unit on applying electrical safety procedures when working on high voltage (HV) rechargeable energy storage systems (RESS).The unit applies to those who work in the automotive service and repair industry. No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1. Prepare to diagnose and repair traction motor speed control system in battery electric vehicle
  • 1.1 Identify job requirements from workplace instructions
  • 1.2 Identify required information for diagnosis activity
  • 1.3 Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures
  • 1.4 Identify hazards and environmental issues associated with diagnose and repair activity, assess potential risks and implement control measures in line with workplace policies and procedures
  • 1.5 Identify tools and equipment required for testing strategy and establish serviceability according to workplace procedures
2. Diagnose traction motor speed control system in battery electric vehicle
  • 2.1 Implement diagnostic tests set out in testing strategy according to manufacturer and workplace procedures, and workplace health and safety requirements
  • 2.2 Identify cause of fault through analysis of diagnostic test results
  • 2.3 Confirm and report cause of fault according to workplace procedures
  • 2.4 Develop and report recommendations for necessary repairs according to workplace procedures
3. Repair traction motor speed control system in battery electric vehicle
  • 3.1 Identify required information for repair activity
  • 3.2 Identify tools, equipment and materials required for repair activity and establish serviceability according to workplace procedures
  • 3.3 Isolate RESS service plug or manual service disconnect and depower vehicle HV RESS according to manufacturer specifications
  • 3.4 Carry out repairs according to workplace and manufacturer procedures, manufacturer specifications, workplace health and safety and environmental requirements
  • 3.5 Reconnect RESS service plug or manual service disconnect and repower vehicle HV RESS
  • 3.6 Carry out post-repair testing according to workplace procedures, workplace health and safety and environmental requirements
4. Complete work processes
  • 4.1 Conduct final inspection according to workplace procedures and confirm vehicle is ready for use
  • 4.2 Clear work area and dispose of or recycle materials according to workplace procedures
  • 4.3 Complete documentation according to workplace procedures
No information
No information
Replaces
State Code National Code Title Type
AXE17 AURETH004 Diagnose and repair traction motor speed control systems in battery electric vehicles Unit of competency