Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Workplace instructions may include:
electronic or hard copy instructions
verbal instructions
written instructions.
Job requirements may include:
diagnosis and repair methods, processes and equipment.
Workplace health and safety requirements may include:
personal protective clothing and equipment
hazards associated with high voltage ignition systems
safe use of tools and equipment
safe handling of material
use of fire-fighting equipment
workplace safety policies and procedures
workplace first aid equipment
hazard control, including control of hazardous materials and toxic substances.
Procedures and information may include:
verbal, written and graphical instructions
signage
work schedules, plans and specifications
work bulletins and memos
material safety data sheets
diagrams and sketches
regulatory and legislative requirements relating to automotive industry
Australian Design Rules
engineer's design specifications and instructions
workplace work specifications and requirements
instructions issued by authorised workplace or external persons
Australian standards
vehicle service requirements and repair manuals.
Tools and equipment may include:
hand tools
testing equipment, including multimeters and ohmmeters
insulation testers
crimping tools
soldering iron
heat-gun or blower
wire and cabling of various colours and sizes
heat shrink sleeving and flexible conduit
terminals and connectors
electrical tape.
Wiring harness and looms may include:
basic single wiring, for example:
tailer harness
driving lights harness
complex multi-wiring with varying wire gauges
CAN-bus network wiring, including:
twisted pair
shielded wiring.
Options for diagnosing faultsmay include:
continuity testing
insulation testing
isolation of faults
visual inspection and evaluation of components.
Inappropriate testing procedures may include:
intrusive testing (which must not be performed as it is not a recommended test and repair method), which includes:
back probing terminals and connectors and fuse holders with inappropriate test probes
probing terminal and connectors with inappropriate test probes
pushing sharp probes and objects into wiring insulation.
Faults may include:
open circuits
short circuits
damaged insulation
frayed wires
burnt wiring
water and moisture ingress
connector damage
terminal damage
diagnosis trouble codes (DTC) being set.
Repair options may include:
pre- and post-repair testing
identifying and testing components
diagnosing and determining faults
component repair procedures, including:
removal, replacement and adjustment procedures
dismantle, repair, reassembly and adjustment procedures
electrical measurements
peak voltage testing
visual and functional assessments, including for damage and wear.
Post-repair testing may include:
validating effectiveness of the repair action
confirming that reported fault has been rectified
confirming that no other faults are present as a result of the repair action.

EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge.
A person who demonstrates competency in this unit must be able to:
observe safety procedures and requirements
select methods and techniques appropriate to the circumstances
complete preparatory activity in a systematic manner
select and use appropriate materials for fabricating, testing and repairing wiring harnesses and looms
test wiring of harnesses and looms and locate potential faults
remove and replace wiring harnesses and looms
test and repair wiring harnesses and looms to manufacturer specification
perform electrical connections, including crimping and soldering to manufacturer specification
perform a terminal retention check following replacement of terminals in a wiring connector
fabricate wiring harnesses.
Context of, and specific resources for assessment
Competency is to be assessed in the workplace or a simulated workplace environment that accurately reflects performance in a real workplace setting.
Assessment is to occur:
using standard workplace practices and procedures
following safety requirements
applying environmental constraints.
Assessment is to comply with relevant:
regulatory requirements
Australian standards
industry codes of practice.
The following resources must be made available for the assessment of this unit:
workplace location or simulated workplace
material relevant to the fabrication and repair of wiring harnesses and looms
equipment, and hand and power tools appropriate to fabricating, testing and repairing wiring harnesses and looms
specifications and work instructions.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of this Training Package.
Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with the application of required skills and knowledge.
Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure correct interpretation and application.
Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate the needs of diverse clients.
Assessment processes and techniques must be culturally sensitive and appropriate to the language, literacy and numeracy capacity of the candidate and the work being performed.