List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
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 a complex fault in at least three different liquefied petroleum gas (LPG) fuel systems
the above diagnoses must involve at least two of the following types of complex faults:
an intermittent fault
a fault that affects more than one system
a fault introduced as a result of a system repair
an indirect fault caused by the influence of external systems.
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 complex faults in LPG fuel systems, including:
manufacturer specifications and procedures or equivalent documentation
workplace procedures required to diagnose complex faults in LPG fuel 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
work health and safety (WHS) requirements relating to diagnosing complex faults in LPG fuel systems, including procedures for working with heavier-than-air flammable gas
environmental requirements, including procedures for preventing loss of gas to atmosphere
types of complex faults relating to LPG fuel systems, including:
intermittent
multi-system
introduced as a result of system repair
indirect, caused by the influence of external systems
types and key features of LPG fuel systems, including:
converter-mixer systems
injection systems
requirements of AS/NZS 1425 LP Gas fuel systems for vehicle engines
testing procedures for LPG fuel systems, including:
component failure analysis
safety component operation
electrical control systems
exhaust emissions
on-road fuel efficiency
data interpretation
types and key features of diagnostic testing equipment required to diagnose complex faults in LPG fuel systems
procedures for accessing and interpreting scan tool system data, including:
diagnostic trouble codes (DTCs), including:
conditions that set the DTCs
conditions for running DTCs
live data
freeze frame data
waveforms
vehicle continuous and non-continuous monitored systems
methods and processes for documenting and reporting diagnostic findings and recommendations.
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 LPG fuel 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
AS/NZS 1425 LP Gas fuel systems for vehicle engines
manufacturer LPG fuel system specifications
three different LPG fuel systems with complex faults
LPG fuel system diagnostic equipment, including:
scan tool
vacuum gauge
compression gauge
tools, equipment and materials appropriate for diagnosing complex faults in LPG fuel systems.
Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.