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:

select methods and techniques appropriate to the fault being diagnosed

complete preparatory activity in a systematic manner

diagnose and repair at least three different faults within vehicle dynamic control systems

conduct diagnosis and repair procedures according to workplace, manufacturer and component supplier requirements

present vehicle in a condition that complies with workplace requirements.

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

vehicles with various vehicle dynamic control system faults

equipment appropriate for the testing of vehicle dynamic control systems

specifications and workplace instructions

tools appropriate for repairing, replacing and adjusting vehicle dynamic control systems.

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.

Required skills

communication skills to:

follow verbal and written instructions

clarify workplace instructions and determine job requirements

gain information from appropriate persons and assistance as required

initiative and enterprise skills to:

apply learning when diagnosing and repairing various vehicle dynamic control systems

recognise a workplace problem or potential problem and take action

learning skills to identify sources of information, assistance and expert knowledge to expand own skills, knowledge and understanding

literacy skills to:

read and follow information in written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents

obtain and record measurements

document required repairs and parts

numeracy skills to:

test, measure and analyse test equipment results compared to desired system performance

planning and organising skills to:

plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed on time

identify risk factors and take action to minimise them

problem-solving skills to:

determine the underlying causes of faults

refer problems outside area of responsibility to appropriate person and suggest possible causes or solutions

seek information and assistance as required to solve problems

self-management skills to:

select and use appropriate equipment, materials, processes and procedures

follow workplace documentation, such as codes of practice and operating procedures

technical skills to use hand, power and specialised tools relating to the repair of vehicle dynamic control systems

technology skills to:

operate diagnostic and automotive test equipment

use technology to collect, analyse and provide information

Required knowledge

WHS regulations, requirements, equipment, material and personal safety requirements, including:

individual state and territory legislation

codes of practice

personal protection needs when working on vehicles in an automotive workshop

application, purpose and operation of vehicle dynamic control systems

principal types of vehicle dynamic control systems, including:

electronic braking control module (EBCM):

active roll-over protection

anti-lock braking

brake assist

descent control

electronic brake force distribution

electronic park brake

hill start assist

stability control

traction control

techniques for reading and interpreting automotive technical information, graphic symbols and wiring diagrams

diagnostic and testing procedures, including:

diagnostic procedures for vehicle dynamic control systems, including accessing and interpreting:

diagnostic trouble codes

diagnostic flow charts

analysis of system operation using electrical test equipment, scan tools, oscilloscopes and other industry-relevant test equipment

visual, aural and functional assessments, including:

component damage and wear

component corrosion

repair procedures, including:

component removal and replacement procedures

component and associated system adjustment procedures

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:

workplace first aid equipment

workplace safety policies and procedures

safe work procedures relating to the repair of vehicle under-body systems

safe handling of material

hazard control, including control of hazardous materials and toxic substances

personal protective clothing and equipment

use of fire-fighting equipment

safe use of tools and equipment.

Procedures and information may include:

verbal, written and graphical instructions

signage

work schedules, plans and specifications

work bulletins or memos

material safety data sheets

diagrams and sketches

safe work procedures relating to the repair and replacement of instrument and warning systems

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.

Options for diagnosing faults may include:

obtaining vehicle service history

isolating faults

inspecting and evaluating components.

Tools and equipment may include:

hand tools

vehicle lifting devices

power tools

specialist tools for removing vehicle trim and assemblies

dynamometer

electronic testing equipment, including:

multimeter

oscilloscope

scan tools.

Vehicle dynamic control systems may include:

anti-lock braking system (ABS) control

traction control

steering control

stability control

powertrain management control.

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:

component malfunction, including:

sensor malfunction

yaw rate

lateral rate

steering angle

electronic control module (ECM) or unit (ECU)

electronic brake control module (EBCM)

CAN-bus network operational faults

system and component adjustment

open or short circuits to power, ground and reference circuits

high circuit resistance

diagnosis trouble codes (DTC) being set.

Repair options may include:

procedures for removing, replacing and adjusting

procedures for dismantling, repairing, re-assembling and adjusting

fault finding using aural, visual and functional assessments for damage, corrosion, wear and electrical short and open circuits

electrical measurements

diagnosing and determining repair requirements, electronic systems data, including fault codes, sensor, actuator measurement, and control unit input and output signals

reading and interpreting wiring diagrams.

Post-repair testing may include:

validating the 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.