NZQA Expiring unit standard
3396 version 5
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Title
Diagnose and rectify faults in heavy vehicle and/or machine electrical
starting and charging systems
Level
4
Credits
8
Purpose
This unit standard is for people in the automotive repair
industry. People credited with this unit standard are able to:
demonstrate knowledge of starter and alternator test
procedures; diagnose and rectify faults in heavy vehicle and/or
machine 12 and 24 volt charging systems; and diagnose and
rectify faults in heavy vehicle and/or machine 12 and 24 volt
starting systems.
Classification
Motor Industry > Automotive Electrical and Electronics
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 234, Describe automotive starting and charging systems
and their operation; and Unit 899, Carry out automotive wiring
and circuit repairs; or demonstrate equivalent knowledge and
skills.
Explanatory notes
1
The following legislation and amendments are required to be consulted and followed
where applicable:
– Health and Safety in Employment Act, 1992.
2
Reference to suitable tools and equipment means industry approved tools and
equipment that are recognised within the industry as being the most suited to
complete the task to a professional and competent manner with due regard to safe
working practices.
3
Because of the particular nature of this unit standard, it is essential that the practical
assessment evidence is obtained from commercial jobs in the workplace under
normal workplace conditions.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3396 version 5
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of starter and alternator test procedures.
Evidence requirements
1.1
Safety precautions to be observed when carrying out starting and charging tests
on vehicles and machines are described according to manufacturer’s
instructions.
Range
personal safety, safety of others, handling 24 volt supply, test
equipment safety, vehicle and machine safety.
1.2
Starting and charging faults and their causes are identified.
1.3
External factors affecting starter operation are identified.
1.4
External factors affecting charging operation are identified.
1.5
Test equipment application and compatibility to vehicle and machine starting
and charging systems are described according to instrument manufacturer’s
instructions.
1.6
Starting test procedures on a vehicle and/or machine are described according
to workshop manual instructions.
1.7
Charging test procedures on a vehicle and/or machine are described according
to workshop manual instructions.
Outcome 2
Diagnose and rectify faults in heavy vehicle and/or machine 12 and 24 volt charging
systems.
Evidence requirements
2.1
Safe working practices are observed throughout the task.
Range
personal safety, safety of others, handling 24 volt supply, test
equipment safety, vehicle and machine safety.
2.2
Suitable tools, test equipment, and workshop equipment are selected and used
that enable diagnosis and repair of the charging system to be carried out to
manufacturer's instructions.
2.3
Symptoms of the fault(s) are verified according to vehicle and/or machine
manufacturer’s instructions.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3396 version 5
Page 3 of 4
2.4
Fully serviceable batteries are verified before continuing with other charging
system tests.
2.5
The charging system is tested following a logical, systematic test procedure,
and any faults are identified and located on the vehicle and/or machine.
2.6
Components are tested according to vehicle and/or machine manufacturer’s
specifications, and the faults are recorded for future reference.
Range
2.7
Faults are rectified to restore full serviceability of the system.
Range
2.8
series system, parallel system;
connectors, wires, internal regulator, warning lamp, relay.
repair, replacement, adjustment;
connectors, wires, warning lamp.
An alternator is replaced on a vehicle and/or machine to meet manufacturer's
specifications.
Outcome 3
Diagnose and rectify faults in heavy vehicle and/or machine 12 and 24 volt starting
systems.
Evidence requirements
3.1
Safe working practices are observed throughout the task.
Range
personal safety, safety of others, handling 24 volt supply, test
equipment safety, vehicle and machine safety.
3.2
The symptoms of the fault(s) are verified according to vehicle and/or machine
manufacturer’s instructions.
3.3
Suitable tools, test equipment, and workshop equipment are selected and used
that enable diagnosis and repair of the starting system to be carried out to
manufacturer's instructions.
3.4
Fully serviceable batteries are verified before continuing with other starting
system tests.
3.5
The starting system is tested following a logical, systematic test procedure, and
any faults are identified and located on the vehicle and/or machine.
3.6
Components are tested according to vehicle and/or manufacturer’s
specifications, and faults are rectified to restore full serviceability of the system.
Range
repair, replacement, adjustment;
series system, parallel system;
solenoid, relays, switches, cables, connectors.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3.7
3396 version 5
Page 4 of 4
A starter motor is replaced on the vehicle and/or machine to meet
manufacturer's specifications.
Replacement information
This unit standard has been replaced by unit standard
24125 and unit standard 24126.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 February 1995
31 December 2016
Review
2
21 February 1999
31 December 2016
Review
3
25 January 2008
31 December 2016
Rollover
4
19 November 2010
31 December 2016
Rollover
5
18 February 2016
31 December 2020
Consent and Moderation Requirements (CMR) reference
0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, or
an inter-institutional body with delegated authority for quality assurance, before they can
report credits from assessment against unit standards or deliver courses of study leading
to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Conesnt and Moderation Requirements (CMR). The CMR
also includes useful information about special requirements for organisations wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016