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

diagnose and repair a range of electronic spark ignition engine management systems

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

present vehicle and equipment 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 electronic spark ignition engine management faults relevant to the qualification being sought

equipment appropriate for the testing of vehicle electronic spark ignition engine management systems

specifications and workplace instructions

tools appropriate for repairing, replacing and adjusting vehicle electronic spark ignition engine management 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 electronic spark ignition engine management systems

recognise a workplace problem or potential problem and take action

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

assess tolerances and apply accurate measurements and adjustments

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

seek information and assistance as required to solve problems

self-management skills to:

select and use appropriate equipment, materials, processes and procedures

recognise limitations and seek timely advice

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

teamwork skills to apply knowledge of own role to complete activities efficiently to support team activities and tasks

technical skills to use hand, power, measuring and specialised tools relating to the repair of electronic spark ignition engine management systems

technology skills to:

operate diagnostic and test equipment

use technology to collect, analyse and provide information

Required knowledge

WHS regulations, requirements, equipment, material and personal safety requirements relating to diagnosing and repairing electronic spark ignition engine management systems, including:

individual state and territory legislation

codes of practice

personal protection needs

principal types of vehicle electronic spark ignition engine management systems, including:

electronic ignition systems: distributer and distributer-less systems

coil on plug ignition systems: two and three wire

fuel injection, return and non-return systems

turbo and supercharger control

variable intake

variable valve timing

drive-by-wire systems

application, purpose and operation of electronic spark ignition engine management systems, including:

misfire detection

ignition timing and spark advance

electronic control of spark advance

dwell period

camshaft and crankshaft sensors

knock sensors

spark plugs

technical information, graphic symbols and diagrams relating to electronic spark ignition engine management systems

diagnostic and testing procedures, including:

diagnostic procedures for electronic spark ignition engine management systems, including:

accessing and interpreting diagnostic trouble codes (DTC)

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:

personal protective clothing and equipment

hazards associated with:

high voltage ignition systems

LPG, CNG and LNG fuels

high pressure fuel rail systems and components

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

safe work procedures relating to repairing and replacing electronic spark ignition engine management 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 faultsmay include:

isolation of faults

component inspection and evaluation.

Tools and equipment may include:

hand tools

testing equipment, including multimeters, ohmmeters, voltmeters and tachometers

fuel pressure and flow meter

insulation testers

power tools and air tools

tune scopes

engine analysers

dynamometers

oscilloscope

diagnostic scan tools.

Electronic spark ignition engine management systems may include:

electronic ignition systems

direct fire ignition (DFI) systems

coil-on-plug ignition systems

turbo chargers and intercoolers

air intake

exhaust emission control

throttle 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:

engine difficult to start or will not start

engine misfiring

poor engine performance

engine knock

overheating

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, re-assembly 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.