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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 and repair charging 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 charging system
   • Diagnostic tests are carried out according to workplace procedures and safety requirements without causing damage to components or systems
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
3. Repair charging 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 according to manufacturer specifications and workplace procedures
   • 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 according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
4. Compete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle, vessel or machinery 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 and any faulty electrical equipment is identified, tagged and isolated according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to diagnose and repair charging 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 charging system
   • Diagnostic tests are carried out according to workplace procedures and safety requirements without causing damage to components or systems
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
7. Repair charging 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 according to manufacturer specifications and workplace procedures
   • 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 according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
8. Compete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle, vessel or machinery 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 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: using specialised tools and equipment using appropriate personal protective equipment (PPE) identifying hazards and controlling risks associated with: working on high voltage ignition systems wearing jewellery while working around high current wiring systems.

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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 the unit’s elements and performance criteria, range of conditions and foundation skills:

diagnose and repair a fault in two of the following charging system components in two different vehicles, vessels or machinery:

alternator stator or rotor circuit

alternator internal regulator control circuit

external regulator battery management system circuit

battery to alternator wiring and earthing system circuit

machinery charging system circuit.

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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 charging systems, including procedures for:

using specialised tools and equipment

using appropriate personal protective equipment (PPE)

identifying hazards and controlling risks associated with:

working on high voltage ignition systems

wearing jewellery while working around high current wiring systems

operating principles of charging systems and associated components, including:

charging batteries with direct current

vehicle system power and electrical current requirements

generating principles, including Faraday’s law and inducing an electromotive force (EMF)

producing direct current (DC) EMF

producing alternating current (AC) EMF

changing AC to DC, including half-wave and full-wave rectification

application, purpose and operation of charging systems and components, including:

generators, including:

internal component function and operation

regulation of output voltage and current

alternators, including:

internal component function and operation

star-connected and delta-connected stator windings

regulation of output voltage, including zener diodes and exciter diodes

battery management systems

diagnostic testing procedures for charging systems, including:

accessing and interpreting scan tool system data, including:

diagnostic trouble codes (DTCs)

live data

freeze frame data

waveforms

using diagnostic flow charts

testing electrical systems, including procedures for:

accessing electrical terminals and using test probes without damaging connectors, fuse holders or wiring

load testing charging systems

resistance, current flow and voltage drop checks of charging system circuits

repair procedures for charging systems, including:

tightening connections

replacing faulty or damaged cable connections

removing and replacing faulty or damaged components

post-repair testing procedures for charging systems, including:

DTC clearing procedures

checking for electrical connector mating

static and dynamic performance tests of charging systems.

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