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Elements and Performance Criteria

  1. Prepare to diagnose and repair electronic compression ignition engine management systems
  2. Diagnose electronic compression ignition engine management systems
  3. Repair electronic compression ignition engine management systems
  4. Prepare vehicle and equipment for delivery to customer after repair is completed
  5. Clean up work area and finalise work processes

Required Skills

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 compression 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

problemsolving 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

selfmanagement 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 compression 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 compression ignition engine management systems including

individual state and territory legislation

codes of practice

personal protection needs

dangers of working with highpressure diesel fuel systems

principal types of vehicle electronic compression ignition engine management systems including

direct injection including

electronic unit injectors EUI

hydraulic electronic unit injectors HEUI

indirect injection

common rail systems including

common rail solenoid

piezo design

amplified systems

application purpose and operation of electronic compression ignition engine management systems including

common rail fuel control system

fuel injectors types and designs

glow plugs

exhaust gas recirculation EGR and positive crankcase ventilation PCV system

diesel particulate diffuser DPD exhaust aftertreatment system

turbo and super charger and intercooler systems

fuel filter coolers and water trap

techniques for reading and interpreting technical information graphic symbols and diagrams

diagnostic and testing procedures including

diagnostic procedures for electronic compression ignition engine management systems including

accessing and interpreting diagnostic trouble codes

diagnostic flow charts

analysis of system operation using electrical test equipment scan tools oscilloscopes and other industryrelevant 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 and recalibration procedures

Evidence Required

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

demonstrate safe work procedures relating to working with high fuel pressure and high injector voltages on diesel engines

select methods and techniques appropriate to the circumstances

complete preparatory activity in a systematic manner

diagnose and repair a range of electronic compression 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 compression ignition engine management faults relevant to the qualification being sought

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

specifications and workplace instructions

tools appropriate for repairing replacing and adjusting vehicle electronic compression 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


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 pressure fuel systems

hazards associated with high injector voltage circuits

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 the repair and replacement of electronic compression 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

insulation testers

power tools and air tools

fuel pressure and fuel flow gauges

engine analysers

dynamometers

oscilloscopes

diagnostic scan tools.

Electronic compression ignition engine management systems may include:

direct injection:

electronic unit injectors

hydraulic electronic unit injectors

indirect injection

common rail systems, including:

solenoid

piezo electric

amplified systems.

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

black or white smoke from exhaust

PCV defective

diesel fuel contamination

blocked or restricted fuel injectors

DPD exhaust after treatment system defective or not serviced

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, re-assembly and adjustment procedures

electrical measurements

fuel pressure testing involving 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.