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Elements and Performance Criteria

1. Identify and confirm the work requirement
   • Nature and objective of diagnostic requirements are determined from workplace instructions
   • Existence of fault in vehicle safety system is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety requirements
2. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for safety system are accessed and interpreted
   • Diagnostic procedures and options are identified
   • Diagnostic method sequence, tests and testing processes are selected from the range of available options
   • Testing equipment is selected and prepared according to manufacturer specifications and workplace procedures
   • Tools, equipment and materials required to support the diagnostic process are identified, selected and prepared for use
3. Apply diagnostic procedures
   • Selected diagnostic process is followed and testing is carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are drawn from findings and documented according to workplace procedures, including recommendations for necessary repairs
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
4. Complete work processes
   • Vehicle is presented ready to be repaired or returned to the customer
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored, and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Identify and confirm the work requirement
   • Nature and objective of diagnostic requirements are determined from workplace instructions
   • Existence of fault in vehicle safety system is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety requirements
6. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for safety system are accessed and interpreted
   • Diagnostic procedures and options are identified
   • Diagnostic method sequence, tests and testing processes are selected from the range of available options
   • Testing equipment is selected and prepared according to manufacturer specifications and workplace procedures
   • Tools, equipment and materials required to support the diagnostic process are identified, selected and prepared for use
7. Apply diagnostic procedures
   • Selected diagnostic process is followed and testing is carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are drawn from findings and documented according to workplace procedures, including recommendations for necessary repairs
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
8. Complete work processes
   • Vehicle is presented ready to be repaired or returned to the customer
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored, and any faulty electrical equipment is identified, tagged and isolated 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, including procedures for: identifying hazards and controlling risks associated with: working with high voltages on vehicle electrical systems working around the vehicle’s supplementary restraint systems (SRS), such as airbags wearing jewellery while working around high electrical currents disarming vehicle airbag and safety restraint systems, as required.

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Performance Evidence

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

diagnose complex faults in the safety systems of two different light vehicles or light commercial vehicles

the above diagnosis must involve two of the following types of complex faults:

an intermittent fault

a fault that affects more than one system

a fault introduced as a result of a system repair

an indirect fault caused by the influence of external 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 complex faults in light vehicle safety systems, including procedures for:

identifying hazards and controlling risks associated with:

working with high voltages on vehicle electrical systems

working around the vehicle’s supplementary restraint systems (SRS), including airbags

wearing jewellery while working around high electrical currents

disarming vehicle airbag and safety restraint systems

types of complex faults relating to light vehicle safety systems, including:

intermittent

multi-system

introduced as a result of system repair

indirect, caused by the influence of external systems

methods for locating and content of manufacturer specifications, workplace procedures and other technical information relating to light vehicle safety systems

types, function and operation of light vehicle safety systems, including:

active and passive collision avoidance

adaptive front lighting systems

airbag systems

lane keeping assist

occupant detection systems

radar cruise control

roll-over protection

seatbelt pre-tensioners

testing procedures for light vehicle safety systems, including:

using digital multimeter, scan tool and oscilloscope

vehicle dynamic and static testing

component failure analysis

vehicle continuous and non-continuous monitored systems

types, functions, operation and limitations of diagnostic testing equipment required to diagnose complex faults in light vehicle safety systems

procedures for accessing and interpreting scan tool system data, including:

diagnostic trouble codes (DTCs), including:

conditions that set the DTCs

conditions for running DTCs

live data

freeze frame data

waveforms

methods and processes for documenting and reporting diagnostic findings and recommendations.

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