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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 compression ignition engine management 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 compression ignition engine management system
   • Diagnostic tests are carried out according to workplace proceduresand 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 compression ignition engine management 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
   • 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
   • 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. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle and 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 according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to diagnose and repair compression ignition engine management 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 compression ignition engine management system
   • Diagnostic tests are carried out according to workplace proceduresand 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 compression ignition engine management 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
   • 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
   • 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. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle and 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 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 pressure diesel fuel 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 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).

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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 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.

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