Unit of competency details
AURETR124 - Diagnose and repair compression ignition engine management systems (Release 1)
Summary
Usage recommendation:
Current
Releases:
| 1 1 (this release) |
13/Nov/2020 |
Companion volumes:
Unit of competency
Assessment requirements
Training packages that include this unit
Qualifications that include this unit
Classifications
Classification history
| 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
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Release
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Comments
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Release 1
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This version first released with AUR Automotive Retail, Service and Repair Training Package Version 6.0
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Application
This unit describes the skills and knowledge required to diagnose and repair faults in the compression ignition engine management systems of vehicles, vessels or machinery. The unit 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.
The unit applies to those who work in an automotive service and repair industry. The compression ignition engine management systems include those in agricultural machinery, heavy commercial vehicles, light vehicles, marine vessels, mobile plant machinery, motorcycles 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
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ELEMENT
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PERFORMANCE CRITERIA
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Elements describe the essential outcomes.
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Performance criteria describe the performance needed to demonstrate achievement of the element.
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1. Prepare to diagnose and repair compression ignition engine management system
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1.1 Access workplace instructions to identify job requirements and confirm existence of fault according to workplace procedures
1.2 Source and interpret required information for diagnosis activity, including customer complaint, workplace and manufacturer procedures
1.3 Source testing strategy to efficiently identify cause of fault using workplace and manufacturer procedures
1.4 Identify hazards and environmental issues, assess potential risks and implement control measures in line with workplace policies
1.5 Identify diagnostic tools and equipment required for the job and examine them for serviceability
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2. Diagnose engine management system
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2.1 Carry out diagnostic tests according to manufacturer and workplace procedures, and workplace health and safety requirements
2.2 Analyse diagnostic test results to identify cause of fault, conducting further tests if required
2.3 Confirm and report cause of fault according to workplace procedures
2.4 Develop and report recommendations for necessary repairs or adjustments according to workplace procedures
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3. Repair engine management system
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3.1 Source and interpret required information for repair activity, including manufacturer specifications, workplace and manufacturer procedures
3.2 Identify repair tools, equipment and materials required for the job and examine for serviceability
3.3 Carry out repairs or component replacements and adjustments according to workplace and manufacturer procedures, manufacturer 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 to confirm fault rectification and repair any issues identified
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4. Complete work processes
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4.1 Carry out final inspection to ensure work meets workplace expectations and 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
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Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential to performance but not explicit in the performance criteria.
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S KILL
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DESCRIPTION
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Learning
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- Locates required sources of information efficiently
- Develops a sequenced plan for a specific task
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Reading
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- 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
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Oral communication
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- Clarifies instructions
- Obtains information from customers and supervisors
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Numeracy
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- Matches electrical components 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
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Planning and organising
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- Plans own work requirements
- Prioritises actions to achieve required outcomes
- Ensures tasks are completed within workplace timeframes
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Technology
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- Uses specialised diagnostic equipment.
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Unit Mapping Information
Supersedes and is equivalent to AURETR024 Diagnose and repair compression ignition engine management 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
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Release
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Comments
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Release 1
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This version first released with AUR Automotive Retail, Service and Repair Training Package Version 6.0
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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 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)
- carry out a diagnostic test in the course of the above for at least one of the following faults:
- low or high pressure in the fuel system
- damaged sensors, connectors or wiring
- leaking or restricted injectors.
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 compression ignition engine management systems, including:
- information provided by customers and supervisors
- manufacturer specifications and procedures or equivalent documentation
- workplace procedures required to diagnose and repair compression ignition engine management systems, including:
- establishing serviceability of tools and equipment
- documentation procedures
- housekeeping procedures, including:
- examination of tools and equipment
- use of specialised tools and equipment, including multimeters, scan tools and oscilloscope
- 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 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
- environmental requirements relating to diagnosing and repairing compression ignition engine management systems
- key features of compression ignition engine management systems and components, including common rail fuel systems and unit injection systems:
- low pressure stage
- high pressure stage, including:
- high pressure injection pump
- 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 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:
- checking fault codes
- assessing engine performance
- checking for electrical connector mating
- operating principles of diesel fuel injection systems and associated components, including:
- phases of combustion
- composition of diesel fuel, including cetane and sulphur content.
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 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.
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
