Application
This unit describes the performance outcomes required to diagnose and repair faults in dynamic control systems of vehicles. These systems include the functions of a vehicle electronic braking control module (EBCM), such as anti-lock braking, brake assist, descent control, electronic brake force distribution, electronic park brake, hill start assist, stability control, traction control and active roll-over protection. The unit involves preparing for the task, selecting the correct diagnostic procedure, carrying out the diagnosis and the repair, performing post-repair testing, and completing workplace processes and documentation.
It applies to those working in an automotive service and repair industry. Vehicle dynamic control systems include those in heavy commercial vehicles, light vehicles or motorcycles.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Elements and Performance Criteria
Elements Elements describe the essential outcomes. | Performance Criteria Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section. |
1. Prepare to diagnose and repair vehicle dynamic control system | 1.1 Job requirements are determined from workplace instructions 1.2 Diagnostic information is sourced and interpreted 1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected 1.4 Hazards associated with the work are identified and risks are managed 1.5 Diagnostic tools and equipment are selected and checked for serviceability |
2. Diagnose vehicle dynamic control system | 2.1 Diagnostic tests are carried out according to workplace procedures 2.2 Faults are identified from diagnostic test results and causes of faults are determined 2.3 Diagnostic tools and equipment are selected and checked for serviceability according to manufacturer specifications and workplace procedures |
3. Repair vehicle dynamic control system | 3.1 Repair information is sourced and interpreted 3.2 Repair options are analysed and those most appropriate to the circumstances are selected 3.3 Repair tools, equipment and materials are selected and checked according to manufacturer specifications and workplace procedures 3.4 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage 3.5 Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified |
4. Complete work processes | 4.1 Final inspection is made to ensure work is to workplace expectations and vehicle or machinery is presented ready for use 4.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 4.3 Tools and equipment are checked and stored and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures 4.4 Workplace documentation is processed according to workplace procedures |
Evidence of Performance
Before competency can be determined, individuals must demonstrate they can perform the following according to the standard defined in the unit’s elements and performance criteria, range of conditions and foundation skills:
diagnose and repair a fault in the dynamic control systems of:
one vehicle or machinery with an anti-lock braking system (ABS)
one vehicle or machinery with a traction control system (TCS).
Evidence of Knowledge
Individuals must be able to demonstrate knowledge of:
work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing vehicle dynamic control systems, including procedures for:
using specialised tools and equipment
using appropriate personal protective equipment (PPE)
identifying hazards and controlling risks associated with:
working on vehicle high voltage ignition systems
wearing jewellery while working around high current wiring systems
operating principles of vehicle dynamic control systems and associated components, including:
active roll-over protection
anti-lock braking
brake assist
descent control
electronic brake force distribution
electronic park brake
hill start assist
stability control
traction control
application, purpose and operation of vehicle dynamic control systems and components, including:
ABS, including system inputs, electronic control unit (ECU), ABS modulator, and system outputs
TCS, including system inputs, ECU, and system outputs, including associated throttle and braking system controls
electronic stability control (ESC), including system inputs, including yaw and steering angle sensors, and ECU and system outputs, including associated throttle and braking system controls
diagnostic testing procedures for vehicle dynamic control systems, including:
accessing and interpreting scan tool system data, including:
diagnostic trouble codes (DTCs), including ‘U’ type communication codes
live data
freeze frame data
waveforms
using diagnostic flow charts
testing electrical systems, including procedures for:
accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiring
determining damage to system wiring and connectors
repair procedures for vehicle dynamic control systems, including:
connector removal and replacement procedures
removal and replacement procedures for vehicle dynamic control system components
post-repair testing procedures for vehicle dynamic control systems, including:
DTC clearing procedures
checking for electrical connector mating.
Assessment Conditions
Assessors must satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment must include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the vehicle dynamic control systems that they have worked on, e.g. repair orders.
Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources must be made available:
automotive repair workplace or simulated workplace
workplace instructions
manufacturer vehicle dynamic control system specifications
two different vehicles or machinery with dynamic control system faults
diagnostic equipment for vehicle dynamic control systems, including:
multimeter
scan tool
tools, equipment and materials appropriate for repairing vehicle dynamic control systems.
Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential to performance and are not explicit in the performance criteria.
Skills | Description |
Learning skills to: | identify and locate various sources of information efficiently. |
Reading skills to: | interpret text, symbols and wiring diagrams in diagnostic and repair information from manufacturer specifications and workplace instructions and procedures. |
Writing skills to: | legibly and accurately fill out workplace documentation when reporting diagnostic findings, making repair recommendations, and recording parts and material used. |
Oral communication skills to: | clarify instructions report diagnostic findings and make repair recommendations. |
Numeracy skills to: | match electrical components and part identification numbers to workplace instructions, vehicle and component part lists, and manufacturer specifications interpret vehicle electrical measurements and readings measure voltage, current and resistance and use basic mathematical operations, including addition and subtraction, to calculate deviations from manufacturer specifications. |
Planning and organising skills to: | plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed within workplace timeframes. |
Technology skills to: | use specialised equipment, including multimeters and scan tools. |
Range Statement
This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.
Safety requirements must include: | work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: using specialised tools and equipment using appropriate personal protective equipment (PPE) identifying hazards and controlling risks associated with: working on vehicle high voltage ignition systems wearing jewellery while working around high current wiring systems. |
Sectors
Technical - Electrical and Electronic
Competency Field
Electrical