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Unit of competency details

AURETR129 - Diagnose and repair charging systems (Release 1)

Summary

Usage recommendation:
Current
Mapping:
MappingNotesDate
Supersedes and is equivalent to AURETR029 - Diagnose and repair charging systems 12/Nov/2020

Release Status:
Current
Releases:
ReleaseRelease date
1 1 (this release) 13/Nov/2020


Qualifications that include this unit

CodeSort Table listing Qualifications that include this unit by the Code columnTitleSort Table listing Qualifications that include this unit by the Title columnRelease
AUR31120 - Certificate III in Heavy Commercial Vehicle Mechanical TechnologyCertificate III in Heavy Commercial Vehicle Mechanical Technology1-2 
AUR30720 - Certificate III in Outdoor Power Equipment TechnologyCertificate III in Outdoor Power Equipment Technology
AUR30620 - Certificate III in Light Vehicle Mechanical TechnologyCertificate III in Light Vehicle Mechanical Technology1-2 
AUR31520 - Certificate III in Automotive Diesel Engine TechnologyCertificate III in Automotive Diesel Engine Technology
AUR30920 - Certificate III in Motor Sport TechnologyCertificate III in Motor Sport Technology1-2 
AUR30520 - Certificate III in Marine Mechanical TechnologyCertificate III in Marine Mechanical Technology1-2 
AUR30820 - Certificate III in Motorcycle Mechanical TechnologyCertificate III in Motorcycle Mechanical Technology
AUR30320 - Certificate III in Automotive Electrical TechnologyCertificate III in Automotive Electrical Technology1-2 
AUR30420 - Certificate III in Agricultural Mechanical TechnologyCertificate III in Agricultural Mechanical Technology1-2 
AUR31220 - Certificate III in Mobile Plant TechnologyCertificate III in Mobile Plant Technology1-2 
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Classifications

SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030505 Automotive Electrics And Electronics  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 030505 Automotive Electrics And Electronics  13/Nov/2020 
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Unit Of competency

Modification History

Release 

Comments 

Release 1

This version first released with AUR Automotive Retail, Service and Repair Training Package Version 6.0

Application

This unit describes the skills and knowledge required to diagnose and repair charging systems. The systems used vary based on the work context. The unit involves preparing for the task, sourcing a diagnostic testing strategy, diagnosing the cause of the fault, carrying out the repair, performing post-repair testing, and completing workplace processes and documentation.

The unit applies to those who work in the automotive service and repair industry. The charging systems include those in agricultural machinery, heavy commercial vehicles, light vehicles, marine vessels, mobile plant machinery, or outdoor power equipment.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.

Unit Sector

Electrical Technical – Electrical and Electronics

Elements and Performance Criteria

ELEMENT 

PERFORMANCE CRITERIA 

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare to diagnose and repair charging system

1.1 Identify job requirements from workplace instructions

1.2 Identify required information for diagnosis activity

1.3 Analyse diagnostic options and source testing strategy to identify cause of fault using workplace and manufacturer procedures

1.4 Identify hazards and environmental issues associated with diagnose and repair activity, assess potential risks and implement control measures in line with workplace policies and procedures

1.5 Identify tools and equipment required for testing strategy and establish serviceability according to workplace procedures

2. Diagnose charging system

2.1 Implement diagnostic tests set out in testing strategy according to manufacturer and workplace procedures, and workplace health and safety requirements

2.2 Identify cause of fault through analysis of diagnostic test results

2.3 Confirm and report cause of fault according to workplace procedures

2.4 Develop and report recommendations for necessary repairs according to workplace procedures

3. Repair charging system

3.1 Identify required information for repair activity

3.2 Identify tools, equipment and materials required for repair activity and establish serviceability according to workplace procedures

3.3 Carry out repairs according to workplace and manufacturer procedures, manufacturer or other required specifications, workplace health and safety and environmental requirements

3.4 Carry out post-repair testing according to workplace procedures, workplace health and safety and environmental requirements

4. Complete work processes

4.1 Conduct final inspection according to workplace procedures and confirm vehicle is ready for use

4.2 Clear work area and dispose of or recycle materials according to workplace procedures

4.3 Complete documentation according to workplace procedures

Foundation Skills

This section describes those language, literacy, numeracy and employment skills that are essential to performance but not explicit in the performance criteria.

S KILL 

DESCRIPTION 

Learning

  • Locates required sources of information efficiently
  • Develops a sequenced plan for a specific task

Reading

  • Organises and interprets technical information from workplace procedures, manufacturer procedures and manufacturer specifications
  • Interprets text, symbols and wiring diagrams in information relating to electrical system testing and repair equipment from manufacturer specifications and workplace instructions and procedures

Oral communication

  • Clarifies instructions
  • Obtains information from customers and supervisors

Numeracy

  • Matches alternator types and part identification numbers to workplace instructions, vehicle, machinery and component part lists, and manufacturer specifications
  • Interprets vehicle electrical measurements and readings
  • Measures voltage, current and resistance and uses mathematical operations
  • Calculates deviations from manufacturer specifications

Planning and organising

  • Plans own work requirements
  • Prioritises actions to achieve required outcomes
  • Ensures tasks are completed within workplace timeframes

Technology

  • Uses specialised diagnostic equipment.

Unit Mapping Information

Supersedes and is equivalent to AURETR029 Diagnose and repair charging systems.

Links

Companion Volume Implementation Guide is found on VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1

 

Assessment requirements

Modification History

Release 

Comments 

Release 1

This version first released with AUR Automotive Retail, Service and Repair Training Package Version 6.0

Performance Evidence

The candidate must demonstrate the ability to complete the tasks outlined in the elements, performance criteria and foundation skills of this unit, including evidence of the ability to:

  • diagnose and repair a fault in at least two of the following charging system components, each in a different vehicle, vessel or piece of 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
  • DC – DC charging system circuit
  • machinery charging system circuit
  • solar charging system circuit
  • carry out a diagnostic test in the course of the above for at least one of the following faults:
  • high resistance in an input system
  • loose or damaged connectors or wiring
  • shorted system components.

Knowledge Evidence

The candidate must be able to demonstrate knowledge to complete the tasks outlined in the elements, performance criteria and foundation skills of this unit, including knowledge of:

  • methods to locate and interpret information required to diagnose and repair charging systems, including:
  • information provided by customers and supervisors
  • manufacturer specifications and procedures or equivalent documentation
  • workplace procedures required to diagnose and repair charging systems, including:
  • establishing serviceability of tools and equipment
  • documentation procedures
  • housekeeping procedures, including:
  • examination of tools and equipment
  • storage of equipment
  • identification, tagging and isolation of faulty equipment
  • disposal of excess materials
  • recycling procedures
  • workplace health and safety (WHS) 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
  • purpose and operation of charging systems and components, including:
  • alternators, including:
  • internal component function and operation
  • external components and drive function and operation
  • star-connected and delta-connected stator windings
  • regulation of output voltage, including zener diodes and exciter diodes
  • battery management systems
  • solar
  • diagnostic testing procedures for charging systems, including:
  • accessing and interpreting scan tool system data, including:
  • diagnostic trouble codes (DTCs)
  • live 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 checking procedures
  • checking for electrical connector mating
  • static and dynamic performance tests of charging systems.

Assessment Conditions

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the charging systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

  • automotive repair workplace or simulated workplace
  • workplace instructions
  • manufacturer specifications for vehicle, vessel or machinery charging systems
  • two different vehicles, vessels or machinery with charging system faults
  • diagnostic equipment for vehicle, vessel or machinery charging systems, including:
  • multimeter
  • scan tool
  • tools, equipment and materials appropriate for repairing vehicle, vessel or machinery charging systems.

Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.

Links

Companion Volume Implementation Guide is found on VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1