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Demonstrate knowledge of vehicle ABS, TCS, and ESC electronic
control systems, and testing and rectifying faults
Level
5
Credits
3
Purpose
This theory-based unit standard is for people in the automotive repair
industry. People credited with this unit standard are able to demonstrate
knowledge of anti-lock braking systems (ABS), traction control systems
(TCS), and electronic stability control (ESC) electronic control systems in
vehicles; and testing and rectifying faults in ABS, TCS, and ESC.
Subfield
Motor Industry
Domain
Automotive Electrical and Electronics
Status
Registered
Status date
25 January 2008
Date version published
25 January 2008
Planned review date
31 December 2012
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation relevant to this unit standard includes but is not limited to – Land
Transport Rules: Vehicle Repair 1998, Rule 34001; Vehicle Standards Compliance
2002, Rule 35001/1.
2
Land Transport Rules are produced for the Minister of Transport by Land Transport
New Zealand. These rules are available online at
http://www.landtransport.govt.nz/rules/.
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Definitions
ABS, TCS, and ESC referred to in this unit standard are generic terms also used by
vehicle and component manufacturers under different marketing names and
abbreviations.
Service information may include but is not limited to – technical information of a
vehicle, machine, or product detailing operation; installation and servicing
procedures; manufacturer instructions and specifications; technical terms and
descriptions; and detailed illustrations. This can be accessed in hard copy or
electronic format and is normally sourced from the manufacturer.
Elements and performance criteria
Element 1
Demonstrate knowledge of ABS, TCS, and ESC electronic control systems in vehicles.
Performance criteria
1.1
The purposes of ABS, TCS, and ESC electronic control systems are described
in accordance with service information.
Range
1.2
Prime components in the systems are identified and their functions described in
accordance with manufacturer specifications.
Range
1.3
includes but is not limited to – voltage supply and return, control
modules, speed sensors, temperature sensors, stability sensors,
angle sensors, fuses, switches, diagnostic data link, solenoids,
pump motor, wiring circuit, warning lamps.
The principles of operation of ABS, TCS, and ESC electronic control systems
are described in accordance with service information.
Range
1.4
driver and passenger comfort and security, safety features,
preventing loss of control, monitoring functions, in-built design
features.
includes but is not limited to – description assisted by sketches
showing working circuits using block diagrams for components,
International Organization for Standardization (ISO) symbols,
colour and number coding, terminal location;
fail safe, limp home systems, communication networks.
The way in which ABS, TCS, and ESC electronic control systems integrate into
a central control unit or vehicle network bus is explained in accordance with
manufacturer specifications.
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Element 2
Demonstrate knowledge of testing and rectifying faults in ABS, TCS, and ESC.
Performance criteria
2.1
Precautions to prevent damage to components, and using suitable tools and
equipment when working on ABS, TCS, and ESC electronic control systems are
identified in accordance with service information.
Range
2.2
The importance of obtaining specific and current test information before any
testing is carried out is described in accordance with service information.
Range
2.3
workshop manuals, technical bulletins, computer.
Diagnostic procedures are described in accordance with service information.
Range
2.4
includes but is not limited to – obtaining specifications and
instructions, using compatible equipment, isolating components,
cleanliness, screening, earthing, control unit memory retention;
disconnecting and connecting circuits and plugs, access point
location, pin connection and wiring damage, unsealing and
sealing, retaining circuit memory, control unit isolation;
electrostatic discharge.
includes but is not limited to – tracing circuits, wiring diagrams, test
points, reading and interpreting self-diagnostic test codes,
recommended test equipment, manual testing.
Rectification procedures for system faults are explained in accordance with
service information and legislative requirements.
Range
replacement, repair, adjustment.
Please note
Providers must be 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 accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
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Accreditation 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.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016