Unit of competency details
AURETR024 - Diagnose and repair compression ignition engine management systems (Release 1)
Summary
Usage recommendation:
Superseded
Releases:
| 1 1 (this release) |
14/Apr/2016 |
Companion volumes:
Unit of competency
Assessment requirements
Training packages that include this unit
Qualifications that include this unit
Skill sets that include this unit
Classifications
Classification history
| ASCED Module/Unit of Competency Field of Education Identifier | 030505 | Automotive Electrics And Electronics | 09/Aug/2016 | |
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Unit of competency
Modification History
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Release
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Comment
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Release 1
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New unit of competency.
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Application
This unit describes the performance outcomes required to diagnose and repair faults in the electronic compression ignition engine management systems of vehicles or machinery. It involves preparing for the task, selecting the correct diagnostic procedure, carrying out the diagnosis and the repair, performing post-repair testing, and completing workplace processes and documentation.
It applies to those working in an automotive service and repair industry. Compression ignition engine management systems include those in agricultural machinery, heavy commercial vehicles, light vehicles, marine vessels or mobile plant machinery.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Competency Field
Electrical
Unit Sector
Technical - Electrical and Electronic
Elements and Performance Criteria
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Elements
Elements describe the essential outcomes.
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Performance Criteria
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.
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1. Prepare to diagnose and repair compression ignition engine management system
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1.1 Job requirements are determined from workplace instructions
1.2 Diagnostic information is sourced and interpreted
1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected
1.4 Hazards associated with the work are identified and risks are managed
1.5 Diagnostic tools and equipment are selected and checked for serviceability
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2. Diagnose compression ignition engine management system
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2.1 Diagnostic tests are carried out according to workplace procedures and safety requirements without causing damage to components or systems
2.2 Faults are identified from diagnostic test results and causes of faults are determined
2.3 Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
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3. Repair compression ignition engine management system
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3.1 Repair information is sourced and interpreted
3.2 Repair options are analysed and those most appropriate to the circumstances are selected
3.3 Repair tools, equipment and materials are selected and checked
3.4 Repairs and component replacements and adjustments are carried out according to manufacturer and component specifications, workplace procedures and safety requirements, and without causing damage to components or systems
3.5 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
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4. Complete work processes
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4.1 Final inspection is made to ensure work is to workplace expectations and vehicle and machinery is presented ready for use
4.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
4.3 Tools and equipment are checked and stored and any faulty electrical equipment is identified, tagged according to workplace procedures
4.4 Workplace documentation is processed according to workplace procedures
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Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential to performance and are not explicit in the performance criteria.
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Skills
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Description
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Learning skills to:
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- identify and locate various sources of information efficiently.
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Reading skills to:
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- interpret text, symbols and wiring diagrams in information relating to compression ignition engine management systems from manufacturer specifications and workplace instructions and procedures.
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Writing skills to:
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- legibly and accurately fill out workplace documentation when reporting diagnostic findings, making repair recommendations, and recording parts and material used.
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Oral communication skills to:
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- clarify instructions
- report diagnostic findings and make repair recommendations.
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Numeracy skills to:
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- interpret numerical outputs on multimeters and scan tools
- measure voltage, current and resistance and use basic mathematical operations, including addition and subtraction, to calculate deviations from manufacturer specifications.
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Planning and organising skills to:
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- plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed within workplace timeframes.
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Technology skills to:
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- use specialised equipment, including multimeters and scan tools.
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Range of Conditions
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.
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Safety requirements must include:
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- 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 pressure diesel fuel systems
- wearing jewellery while working around high current wiring systems.
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Unit Mapping Information
Equivalent to AURETR3024 Diagnose and repair electronic compression ignition engine management systems
Links
Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1
Assessment requirements
Modification History
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Release
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Comment
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Release 1
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New unit of competency.
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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 the compression ignition engine management systems of three different vehicles or machinery, including:
- faults in two of the following:
- engine position sensor
- throttle position sensor
- engine coolant temperature sensor
- engine mass airflow (MAF) sensor
- inlet air temperature (IAT) sensor
- faults in one of the following:
- fuel injector
- engine fuel pressure sensor
- boost pressure sensor
- low pressure fuel delivery pump
- high pressure fuel rail pump
- electronic control unit (ECU).
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 compression ignition engine management systems, including procedures for identifying hazards and controlling risks associated with:
- working with high pressure diesel fuel systems
- wearing jewellery while working around high current wiring systems
- operating principles of diesel fuel injection systems and associated components, including:
- phases of combustion
- composition of diesel fuel, including cetane and sulphur content
- application, purpose and operation of compression ignition engine management systems and components, including common rail fuel systems:
- low pressure stage
- high pressure stage, including:
- high pressure injection pump
- common fuel rail
- injectors
- high pressure fuel line
- compression ignition engine management systems, including:
- sensors
- actuators
- wiring harness
- electronic control module (ECM)
- associated vehicle systems
- diagnostic testing procedures for compression ignition engine management systems, including:
- diagnostic flow charts
- fuel system testing, including:
- low pressure fuel system testing
- high pressure fuel system testing
- testing electrical systems, including procedures for:
- accessing electrical terminals and using test probes without damaging connectors or wiring
- injector testing
- sensor testing
- actuator testing
- accessing and interpreting industry-relevant test equipment data, including:
- fault codes
- live data
- freeze frame data
- waveforms
- repair or replacement procedures for compression ignition engine management systems, including procedures for:
- removing and replacing sensors
- removing and replacing actuators, including fuel injectors and fuel pumps
- adjusting and recalibrating components and their associated systems
- post-repair testing procedures, including procedures for:
- clearing fault codes
- assessing engine performance
- checking for electrical connector mating.
Assessment Conditions
Assessors must satisfy NVR/AQTF assessor requirements.
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 compression ignition engine management 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 compression ignition engine management systems
- three different vehicles or machinery with compression ignition engine management system faults
- diagnostic equipment for compression ignition engine management systems, including:
- tools, equipment and materials appropriate for repairing compression ignition engine management systems.
Links
Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1
Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1
