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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 HEV, PHEV or BEV network management system is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures, safety requirements, and requirements of AS 5732 Electric vehicle operations: Maintenance and repair
2. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for network management 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 HEV, PHEV or BEV network management system is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures, safety requirements, and requirements of AS 5732 Electric vehicle operations: Maintenance and repair
6. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for network management 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 with hazardous materials and toxic substances wearing jewellery while working around high electrical currents minimising risk, including: analysing task to define risk applying electrical safety precautions, including ‘one hand’ rule, live system warning tags and signs, depowering the vehicle, isolating the HV RESS electrical supply, and stabilising the vehicle electrical systems using personal protective equipment (PPE), including electrical safety gloves with 1000 volt rating and Australian standards rated HV insulating mat identifying fire safety equipment lifting and moving the RESS using safe manual handling techniques using workplace first aid 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 a complex fault in the embedded network management systems of:

one battery electric vehicle (BEV)

one hybrid electric vehicle (HEV) or one plug-in hybrid electric vehicle (PHEV)

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 HEV and BEV network management systems, including procedures for:

identifying hazards and controlling risks associated with:

working with high voltages on vehicle electrical systems

working with hazardous materials and toxic substances

wearing jewellery while working around high electrical currents

minimising risk, including:

analysing task to define risk

applying electrical safety precautions, including ‘one hand’ rule, live system warning tags and signs, depowering the vehicle, isolating the high voltage (HV) rechargeable energy storage system (RESS) electrical supply, and stabilising the vehicle electrical system

using personal protective equipment (PPE), including electrical safety gloves with 1000 volt rating and Australian standards rated HV insulating mat

identifying and using fire safety equipment

lifting and moving the RESS using safe manual handling techniques

using workplace first aid equipment

types of complex faults relating to HEV and BEV network management 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 network management systems of BEVs, HEVs and PHEVs

requirements of AS 5732 Electric vehicle operations: Maintenance and repair

operating principles of network management systems and data multiplexing in HEVs, PHEVs and BEVs

types, function and operation of HEV, PHEV and BEV systems, including:

direct current (DC) electric motor types, including:

separately excited motors

permanent magnet motors

alternating current (AC) electric motor types, including:

induction motors

brushless motors

motor controllers, including:

variable pulse width DC types

variable frequency, variable amplitude AC types

inverters and converters, including:

AC to DC

DC to AC

batteries, including:

lead acid batteries

nickel metal hydride batteries

lithium ion batteries

ultra capacitors and super capacitors

parallel hybrid electric vehicles

series hybrid electric vehicles

power split hybrid electric vehicles

testing procedures for HEV, PHEV and BEV network management systems, including:

vehicle dynamic and static testing

abnormal noise analysis

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 HEV, PHEV and BEV network management 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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