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Elements and Performance Criteria

1. Prepare to diagnose heavy commercial vehicle electronic braking system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
2. Diagnose electronic braking system
   • Diagnostic tests are carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
3. Repair electronic braking system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repair tools, equipment and materials are selected and checked
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
   • Post-repair testing is carried out and diagnostic fault codes are confirmed as having have been rectified 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
   • Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to diagnose heavy commercial vehicle electronic braking system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
6. Diagnose electronic braking system
   • Diagnostic tests are carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
7. Repair electronic braking system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repair tools, equipment and materials are selected and checked
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures and safety requirements, and without causing damage to components or systems
   • Post-repair testing is carried out and diagnostic fault codes are confirmed as having have been rectified according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
8. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures

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, includingprocedures for working safely with high air pressure systems.

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Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

diagnose and repair a fault in the electronic components of two different heavy commercial vehicle electronic braking systems.

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Knowledge Evidence

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 heavy commercial vehicle electronic braking systems, including procedures for working safely with high air pressure systems

operating principles of heavy commercial vehicle electronic braking systems and associated components, including:

electronic systems

pneumatic systems

Australian Design Rules ADR35 and ADR38 relating to repairing heavy vehicle brakes

application, purpose and operation of heavy commercial vehicle electronic braking systems and components, including:

electronic control unit (ECU)

dual circuit pneumatic foot pedal control valve with electronic position sensing

front circuit electric over air modulation and relay valve

rear circuit electric over air modulation and relay valve

wheel speed sensors and pole wheel

tractor protection air valve

pressure sensor in airbag system or load sensor

diagnostic testing procedures for heavy commercial vehicle electronic braking systems that comply with manufacturer specifications, including:

accessing and interpreting scan tool system data, including:

diagnostic trouble codes (DTCs)

live data

freeze frame data

waveforms

repair procedures for heavy commercial vehicle electronic braking systems that comply with manufacturer specifications, including removal, replacement and adjustment procedures for electronic braking system components

post-repair testing procedures for heavy commercial vehicle electronic braking systems that comply with manufacturer specifications, including static and dynamic performance tests of electronic braking systems.

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