NZQA Expiring unit standard 24121 version 2 Page 1 of 4

Title Demonstrate knowledge of vehicle body electronic control safety systems, and testing and rectifying faults

Level 4 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 body electronic control safety systems in vehicles, and testing and rectifying body electronic control safety system faults.

Classification Motor Industry > Automotive Electrical and Electronics

Available grade Achieved

Guidance information

1 Legislation and publications relevant to this unit standard include but are not limited to – Land Transport Rules: Frontal Impact 2001, Rule 32006/1; Seatbelts and Seatbelt Anchorages 2002, Rule 32011; Vehicle Equipment 2004, Rule 32017; Vehicle Repair 1998, Rule 34001; Vehicle Inspection Requirements Manual (VIRM) – In-service Certification.

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/. The VIRM is published by Land Transport New Zealand and is available online at http://www.landtransport.govt.nz/certifiers/virm-in-service/index.html.

3 Definition is Service information may include but is not limited to – technicalisd information of a vehicle, machine, or product detailing operation; installationda r and servicing procedures; manufacturer instructions and specifications;rd technical terms and descriptions; and detailed illustrations. This cand bean accessed in hard copy or electronic format and is normally sourced fromnt athe manufacturer. a s g 4 Range tt in This unit standard includes but is not s ilimited to – grdriver and passenger safety; itn ini security; in-built design features;n u ixrp compartment safety – air ubagis control, seatpe belt pre-tensioners, seat memory, instrumentation head-upsh display, rearx mirror control, driver fatigue sensor, central locking, key and hsecurityiT systems;e driver information systems – vehicle monitoring display, travelT data, audible warning systems.

NZ Motor Industry Training Organisation Ó New Zealand Qualifications Authority 2018 (Incorporated) SSB Code 101542 NZQA Expiring unit standard 24121 version 2 Page 2 of 4

5 It is recommended that people seeking credit for this unit standard first hold credit for Unit 24131, Demonstrate knowledge of electronic components and their application in the automotive industry, or demonstrate equivalent knowledge and skills.

Outcomes and Performance criteria

Outcome 1

Demonstrate knowledge of body electronic control safety systems in vehicles.

Performance criteria

1.1 The purpose of body electronic control safety systems is described in accordance with manufacturer specifications.

1.2 Prime components in the systems are identified and their functions described in accordance with manufacturer specifications.

Range includes but is not limited to – control modules, sensors, fuses, switches, diagnostic data link, wiring circuit, warning lamps.

1.3 Operating principles of body electronic control safety systems are described in accordance with manufacturer specifications.

Range 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.

1.4 The way in which body electronic control safety systems integrate into a central control unit or vehicle network bus is explained in accordance with manufacturer specifications.

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NZ Motor Industry Training Organisation Ó New Zealand Qualifications Authority 2018 (Incorporated) SSB Code 101542 NZQA Expiring unit standard 24121 version 2 Page 3 of 4

Outcome 2

Demonstrate knowledge of testing and rectifying body electronic control safety system faults.

Performance criteria

2.1 Precautions to prevent damage to components, and using suitable tools and equipment when working on electronic control safety systems are described in accordance with service information.

Range 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.

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 workshop manuals, technical bulletins, computer.

2.3 Diagnostic test procedures are described in accordance with service information.

Range includes but are not limited to – tracing circuits, wiring diagram, test points, reading and interpreting self-diagnostic test codes, recommended test equipment.

2.4 Rectification procedures for system faults are explained in accordance with service information and legislative requirements.

Range replacement, repair, adjustment. is irsd rdda Replacement information This unit standard andan unit standards 16114, 24122 and 24123 were replacedda by unit standard 31062. asnt g This unit standard,tt unit standardn 24119, unit standard 24122, suniti standardgr 24123,i and unit standard 24124 replacedtn unit standardini 2348 and unit standard 5463. n iu irp uis px sh xe This unit standard is expiring.iT Assessmente against the standard must take place by the last date for assessmentTh set out below.

NZ Motor Industry Training Organisation Ó New Zealand Qualifications Authority 2018 (Incorporated) SSB Code 101542 NZQA Expiring unit standard 24121 version 2 Page 4 of 4

Status information and last date for assessment for superseded versions Process Version Date Last Date for Assessment Registration 1 25 January 2008 31 December 2020 Review 2 1 March 2018 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.

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NZ Motor Industry Training Organisation Ó New Zealand Qualifications Authority 2018 (Incorporated) SSB Code 101542