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Diagnose complex system faults

KHU-AUT-0377

Australian Equivalent
AURTTA121
Elements
4
Learning Outcomes
15

This unit describes the skills and knowledge required to diagnose faults in complex vehicle, vessels or machinery systems to determine the repair action necessary to restore system performance. It involves confirming the existence of a complex system fault, developing a diagnostic testing strategy, diagnosing the cause of the fault reporting conclusions, and making repair recommendations. A complex system integrates two or more automotive systems, or incorporates three or more mechanical, hydraulic, pneumatic, electrical or electronic sub-systems. Examples include electronically controlled automatic transmissions, anti-lock braking systems, and engine management systems integrating ignition, fuel and transmission control systems. The unit applies to those who work in the automotive service and repair industry. No licensing, legislative, regulatory or certification requirements apply to t

Elements & Learning Outcomes

4
E1Identify and confirm the work requirement regarding complex system fault
0377.E1.O1Identify job requirements from workplace instructions
0377.E1.O2Confirm nature of fault according to workplace procedures
0377.E1.O3Identify function and correct operation of system with fault
0377.E1.O4Identify other systems affected by fault
E2Develop testing strategy
0377.E2.O1Identify required information for diagnosis activity
0377.E2.O2Analyse diagnostic options and develop testing strategy, including, diagnostic method sequence, tests and testing processes
0377.E2.O3Identify tools and equipment required for testing strategy and establish serviceability according to workplace procedures
0377.E2.O4Identify hazards and environmental issues associated with diagnosis activity, assess potential risks and implement control measures in line with workplace policies and procedures
E3Perform diagnosis
0377.E3.O1Implement diagnostic tests set out in testing strategy according to manufacturer and workplace procedures, and workplace health and safety requirements
0377.E3.O2Verify and report diagnostic findings using reliable alternative process according to manufacturer specifications and workplace procedures
0377.E3.O3Develop and report recommendations for necessary repairs according to workplace procedures
0377.E3.O4Communicate findings to workplace supervisor and customer and confirm next steps
E4Complete work processes
0377.E4.O1Conduct final inspection according to workplace procedures and confirm vehicle is ready for repair process or return to customer
0377.E4.O2Clear work area and dispose of or recycle materials according to workplace procedures
0377.E4.O3Complete documentation according to workplace procedures.
SEAL — South East Asia Learning Identifier & Skills Portal · Prepared for MLVT Executive approval and TVET institute review · Derived from the Australian National Training Register (training.gov.au, CC-BY) and aligned to the Cambodian Qualifications Framework and DSC Standard Training Packages · Delivered via Gibble SMS · July 2026