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Elements and Performance Criteria

1. Identify and confirm work requirement regarding complex system fault
   • Nature and objective of diagnosis requirements are determined from workplace instructions
   • Existence of fault is confirmed from direct or indirect evidence
   • Information, including customer complaint, is sourced to provide a full overview of all faults and conditions under which they occur
2. Analyse information
   • Function and operation of the system when operating correctly are identified
   • Information is analysed and affected systems are identified
   • Manufacturer specifications and other technical information are accessed and interpreted
   • Tests are identified and selected from range of available options, and testing sequence is established
   • Testing equipment is obtained 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
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety requirements
3. Perform diagnosis
   • Tests are applied systematically and efficiently to gather precise data on system operation according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Test results are compared with manufacturer specifications and conclusions are drawn and documented according to workplace procedures, including recommendations for necessary repairs
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
4. Complete work processes
   • Vehicle or machinery 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 according to workplace procedures
5. Identify and confirm work requirement regarding complex system fault
   • Nature and objective of diagnosis requirements are determined from workplace instructions
   • Existence of fault is confirmed from direct or indirect evidence
   • Information, including customer complaint, is sourced to provide a full overview of all faults and conditions under which they occur
6. Analyse information
   • Function and operation of the system when operating correctly are identified
   • Information is analysed and affected systems are identified
   • Manufacturer specifications and other technical information are accessed and interpreted
   • Tests are identified and selected from range of available options, and testing sequence is established
   • Testing equipment is obtained 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
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety requirements
7. Perform diagnosis
   • Tests are applied systematically and efficiently to gather precise data on system operation according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Test results are compared with manufacturer specifications and conclusions are drawn and documented according to workplace procedures, including recommendations for necessary repairs
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
8. Complete work processes
   • Vehicle or machinery 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 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 for working safely with the vehicle systems being tested, including procedures for: selecting and using personal protective equipment (PPE) using tools and equipment.

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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 system faults on three different vehicles, machinery or vessels

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

one fault that is in a complex system that integrates two or more automotive systems

one fault that incorporates three or more mechanical, hydraulic, pneumatic, electrical or electronic sub-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 system faults in vehicles, vessels or machinery, including working safely with the systems being tested, including procedures for:

selecting and using personal protective equipment (PPE)

using tools and equipment

types, application and operation of complex systems, including:

systems that integrates two or more automotive systems

systems that incorporate three or more mechanical, hydraulic, pneumatic, electrical or electronic sub-systems

diagnostic procedures for complex systems, including stages within the diagnostic procedure

methods of gathering information on complex system faults, including customer questioning techniques

types and applications of diagnostic flow charts

types, applications, limitations and operation of diagnostic tools, including:

multimeters

scan tools, including:

diagnosis trouble codes (DTC) and the conditions that caused the code to be set

live data

snap shots

oscilloscopes

mechanical, hydraulic and pneumatic test equipment

methods of differentiating between fault symptoms and fault cause.

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