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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Prepare to diagnose faults
   • Job requirements are determined from workplace instructions and existence of fault is confirmed according to workshop procedures
   • Information, including customer complaint, is sourced and analysed and systems and components to be tested are identified
   • Testing strategy is developed to most efficiently find the faults
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
   • Diagnostic tools and equipment are selected and checked for serviceability
2. Diagnose faults
   • Diagnostic tools and equipment are applied according to manufacturer specifications, workplace procedures and safety requirements
   • Diagnostic tests are carried out without causing damage to diagnostic tools and equipment or vehicle systems or components
   • Identification of faults is confirmed from test results and reported according to workplace procedures
   • Faulty components are examined and cause of faults is determined, including recommendations for repair
3. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and 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
   • Workplace documentation is processed according to workplace procedures
4. Prepare to diagnose faults
   • Job requirements are determined from workplace instructions and existence of fault is confirmed according to workshop procedures
   • Information, including customer complaint, is sourced and analysed and systems and components to be tested are identified
   • Testing strategy is developed to most efficiently find the faults
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
   • Diagnostic tools and equipment are selected and checked for serviceability
5. Diagnose faults
   • Diagnostic tools and equipment are applied according to manufacturer specifications, workplace procedures and safety requirements
   • Diagnostic tests are carried out without causing damage to diagnostic tools and equipment or vehicle systems or components
   • Identification of faults is confirmed from test results and reported according to workplace procedures
   • Faulty components are examined and cause of faults is determined, including recommendations for repair
6. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and 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
   • 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 and environmental requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working safely with the system being tested environmental requirements, including procedures for complying with requirements specific to the system being tested.
Cause of faults must include:	determining the reason the fault developed.

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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:

follow workplace diagnostic procedures to diagnose faults in three different vehicles or machinery

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

loss of vehicle power

excessive fuel consumption

excessive emissions

poor handling

poor hydraulic system performance

poor pneumatic system performance

incorrect mechanical system performance

incorrect electrical system performance

vibration

abnormal noise

record the diagnostic procedures followed with the above vehicles or machinery and identify the cause or causes of faults.

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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 carrying out diagnostic procedures, including procedures for working safely with the system being tested

environmental requirements, including procedures for complying with requirements specific to the system being tested

methods of gathering information, including questioning customers and effective questioning techniques

types and applications of diagnostic strategies, including:

strategy-based diagnostics

flow charts

diagnosis charts

types, applications, limitations and operation of common diagnostic tools

methods of differentiating between fault symptoms and fault causes.

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