NZQA Expiring unit standard
2348 version 4
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Title
Diagnose and rectify faults in vehicle and machine body electronics
Level
4
Credits
8
Purpose
This unit standard is for people in the automotive electrical
industry. People credited with this unit standard are able to:
demonstrate knowledge of body electronic systems in vehicles
and machines; test a body control system for faults; and rectify
body control system faults.
Classification
Motor Industry > Automotive Electrical and Electronics
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 5463, Explain the operation and repair requirements of
automotive electronic control systems, or demonstrate
equivalent knowledge and skills.
Explanatory notes
1
Comfort systems described in this unit standard do not include climatic control. Refer
to Unit 906, Diagnose and rectify automotive climate control system faults.
2
The following legislation and amendments are required to be consulted and followed
where applicable:
– Health and Safety in Employment Act, 1992.
3
Reference to suitable test equipment means industry approved 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.
4
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
2348 version 4
Page 2 of 5
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of body electronic systems in vehicles and machines.
Range
suspension control, steering control, light controls, wiper control, compartment
security and safety control, information systems, comfort and entertainment
systems.
Evidence requirements
1.1
The purpose of a body electronic control system is described according to
manufacturer’s technical information.
Range
driver and passenger comfort, safety, security, monitoring
functions, in-built design features, ease of control, entertainment.
1.2
A system and associated component parts are recognised on the vehicle and/or
machine by reference to manufacturer's technical information.
1.3
The principles of operation of a body control system are described with the aid
of circuit diagram information.
Range
1.4
suspension – electronic over hydraulic, electronic over air
systems;
power steering – speed sensitive;
lighting systems – lamp failure, lights off-on indicators, automatic
dimmer, dome lamp delay, warning light systems;
window screen wipers – variable dwell, speed sensitive, moisture
sensitive;
compartment security – keyless entry, central locking, electronic
deadlock, theft deterrent systems- infrared control;
compartment safety – air bag control, seat belt pre-tensioners,
seat memory, instrumentation head-up display, rear mirror control,
driver fatigue sensor;
driver information systems – vehicle monitoring display, travel
data, audible warning systems;
comfort and entertainment – sensitivity control for power windows
and sun roofs, cruise control, automatic antenna control, radio
frequency memory and search control, phone link-up.
The way in which body control vehicle systems form into a central control unit is
explained according to manufacturer’s technical information.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2348 version 4
Page 3 of 5
Outcome 2
Test a body control system for faults.
Evidence requirements
2.1
Safe working practices are observed throughout the task.
Range
2.2
personal safety; safety of others; equipment, vehicle and machine
safety.
The specific test information is obtained before any testing is carried out.
Range
workshop manuals, technical bulletins, microfiche, computer.
2.3
The electronic circuit of the system to be tested is traced on the manufacturer's
wiring diagram.
2.4
The wiring diagram information of the circuit to be tested is translated to the
electronic circuit on a vehicle and/or machine.
2.5
Test points on the vehicle and/or machine are located that will enable the
diagnosis of the particular system to be carried out.
2.6
Suitable test equipment is selected and used that enable faults in a body control
system to be located.
2.7
Test results obtained are compared to those specified by the manufacturer and
any discrepancies found are traced to their source and the fault(s) isolated.
2.8
No physical and electrical damage is caused to circuit components and
electronic devices.
2.9
The feasibility of a repair is determined based on relevant factors.
Range
2.10
type and extent of repairs required, cost of repair, availability and
cost of replacement.
A report based on the feasibility of repair is presented to the supervisor.
Outcome 3
Rectify body control system faults.
Evidence requirements
3.1
Safe working practices are observed throughout the task.
Range
personal safety; safety of others; equipment, vehicle and machine
safety.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2348 version 4
Page 4 of 5
3.2
Faults that do not require component replacement are rectified according to
manufacturer's instructions.
3.3
Faulty components are replaced according to manufacturer's specifications.
3.4
Precautions are taken to prevent damage to electronic components that could
be caused by electrostatic discharge and installation methods.
Range
metal screening of components, earthing operator.
Replacement information
This unit standard and unit standard 5463 have been
replaced by unit standard 24119, unit standard 24121,
unit standard 24122, unit standard 24123 and unit
standard 24124. This unit standard and unit standard
8182 have been replaced by unit standard 24120.
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
28 September 1994
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
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP 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.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2348 version 4
Page 5 of 5
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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