24132 version 1

Page 1 of 4

Demonstrate knowledge of integrated electronic devices, multiplexing, and microprocessors in the motor industry

Level / 3
Credits / 4

PurposeThis theory-based unit standard is for people in the automotive repair industry. People credited with this unit standard are able to demonstrate knowledge of: digital fundamentals for automotive circuits; multiplex wiring for automotive circuits; and microprocessors used in automotive circuits.

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 / Recommended: Unit 24131, Demonstrate knowledge of electronic components and their application in the automotive industry,or demonstrate equivalent knowledge and skills.
Replacement information / This unit standard, unit standard 24129, unit standard 24130, and unit standard 24131 replaced unit standard 5464. This unit standard and unit standard 24131 replaced unit standard 8187.
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

Special notes

Information on automotive electronics can be found from: training provider, industry, or manufacturer courses; automotive electrical and electronic textbooks (contact a local book retailer, school or polytechnic library or the public library lending service); vehicle workshop manuals; useful websites include but are not limited to: Automotive Books Ltd Capital Books How Stuff Works Zealand Book Find public libraries Technical Books Whitcoulls

Elements and performance criteria

Element 1

Demonstrate knowledge of digital fundamentals for automotive circuits.

Performance criteria

1.1The differences between analogue and digital electronics are compared in accordance with textbook descriptions.

Rangechart differences in on-off characteristics.

1.2Logic gate operation is described in accordance with manufacturer specifications and textbook descriptions.

Rangeor, and, not, truth tables.

1.3Integrated circuits are described in accordance with vehicle manufacturer specifications and textbook descriptions.

1.4Purpose and function of integrated circuits are described in accordance with vehicle manufacturer specifications and textbook descriptions.

1.5Procedures for measuring the current on integrated circuits are described in accordance with vehicle manufacturer specifications.

Element 2

Demonstrate knowledge of multiplex wiring for automotive circuits.

Performance criteria

2.1The application of multiplexing for automotive circuits is identified in accordance with manufacturer specifications and textbook descriptions.

Rangeelectronic control unit (ECU) networking, systems control.

2.2The basic principles of multiplexing are explained in accordance with manufacturer specifications and textbook explanations.

Rangesingle wire current driven, twisted pair, voltage driven, communication protocols and language

Element 3

Demonstrate knowledge of microprocessors used in automotive circuits.

Performance criteria

3.1The operation of memory devices for automotive circuits is described in accordance with manufacturer specifications and textbook descriptions.

Rangestoring the programme, holding information data for inputs and outputs.

3.2Terminology associated with microprocessors is described in accordance with manufacturer specifications and textbook descriptions.

Rangerandom access memory (RAM), read only memory (ROM), electronic control module (ECM), input/output, keep alive memory (KAM), bit.

3.3A block diagram is drawn to describe parts of a microprocessor in accordance with manufacturer specifications and textbook descriptions.

Rangecontrol module, arithmetic and logical unit, registers, accumulator, clock.

3.4The use of microprocessors for automotive systems is described in accordance with manufacturer specifications and textbook descriptions.

Rangeas an ECM, controlling a system, signal recognition, network integration.

3.5A block diagram is drawn to describe sections of an ECM in accordance with manufacturer specifications and textbook descriptions.

Rangemicroprocessor, memory section, input-output section.

3.6The difference between a microprocessor and a microcontroller is identified in accordance with manufacturer specifications and textbook descriptions.

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.

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) if you wish to suggest changes to the content of this unit standard.

 New Zealand Qualifications Authority 2018