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Install electrical accessories in vehicles, and test for and rectify faults

Level / 3
Credits / 2

PurposeThis unit standardis for peoplein the automotive repairindustry. People credited with this unit standard are able to: prepare to install anaccessory; install anaccessory to the vehicle; test an electrical accessory and its circuit for faults; and rectify electrical accessory componentry and circuit faults.

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 24106, Carry out automotive wiring repairs and replace a wiring circuit, or demonstrate equivalent knowledge and skills.
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

1Legislation relevant to this unit standard includes but is not limited to – Health and Safety in Employment Act 1992; Land Transport Rules: Vehicle Lighting 2004, Rule 32005; Vehicle Lighting Amendment 2005, Rule 32005/1; Vehicle Lighting Amendment 2007, Rule 32005/2; Vehicle Standards Compliance 2002, Rule 35001/1.

2Land Transport Rules are produced for the Minister of Transport by Land Transport New Zealand. These rules are available online at

3Definitions

Company requirements refer to instructions to staff on policy and procedures which are documented in memo or manual format and are available in the workplace. These requirements include but are not limited to – company specifications and procedures, work instructions, manufacturer specifications, product quality specifications, and legislative requirements.

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.

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 in a professional and competent manner with due regard to safe working practices.

4Range

This unit standard mayincludebut is not limited to the following after-market accessories – electric aerial, additional brake lights, air horns, trailer plug, auxiliary lights.

5For this unit standard, it is essential that the practical assessment evidence is obtained in the workplace under normal workplace conditions.

Elements and performance criteria

Element 1

Prepare to install anaccessory.

Performance criteria

1.1An accessory kit that is suitable for the vehicle and meets customer requirements is procured, and accessory certification is procured if covered by Land Transport Rules.

1.2A suitable alternative is recommended to the customer if the requested equipment is not available or unsuitable in accordance with company requirements.

1.3Additional parts and materials that are required but not included in the kit are determined and procured in accordance with company requirements.

Element 2

Install anaccessory to the vehicle.

Performance criteria

2.1Safe working practices and service precautions are observed throughout the task in accordance with service information and legislative requirements.

Rangepersonal safety, safety of others, vehicle safety, workshop safety, environmental safety, tools and equipment safety;

service precautions may include but are not limited to – high-voltage electrical systems.

2.2Suitable tools and equipment are selected and used to enable the accessory to be installed in accordance with service information.

2.3The position of any necessary holes is determined to ensure that the accessory is correctly positioned, securely held, the structural strength of the body is not impaired, and no damage is caused by drilling holes or projecting screws.

2.4Trim panels are removed, without damage, where necessary to gain access in accordance with company requirements.

2.5The minimum number of holes necessary are cut in the predetermined locations to the diameters specified in the installation instructions, and any anti-corrosive treatment is carried out in accordance with company requirements.

2.6The wiring is positioned and secured as specified by the accessory or vehicle manufacturer.

2.7The accessory, switch, and any other electrical components are connected to the wiring, and installed and positioned in a manner prescribed by the manufacturer.

2.8The circuit is connected to the supply with effective circuit protection, and is tested for correct operation in accordance with service information.

Element 3

Test an electrical accessory and its circuit for faults.

Performance criteria

3.1Safe working practices and service precautions are observed throughout the task in accordance with service information and legislative requirements.

Rangepersonal safety, safety of others, vehicle safety, workshop safety, environmental safety, tools and equipment safety;

service precautions may include but are not limited to – high-voltage electrical systems.

3.2The system is operated, and the symptoms of any faults established, in accordance with service information.

3.3Suitable tools and equipment are selected and used to enable the system to be tested in accordance with service information.

3.4Tests are carried out in a manner which ensures that any faults are identified and located in accordance with service information. There is no damage to the vehicle's electronic components as a result of testing.

Element 4

Rectify electrical accessory componentry and circuit faults.

Performance criteria

4.1Safe working practices and service precautions are observed throughout the task in accordance with service information and legislative requirements.

Rangepersonal safety, safety of others, vehicle safety, workshop safety, environmental safety, tools and equipment safety;

service precautions may include but are not limited to – high-voltage electrical systems.

4.2A justifiable decision is made whether to repair or replace a faulty part, based on the practical and economic viability of a repair in accordance with company requirements.

4.3Suitable tools and equipment are selected and used to enable the accessory to be removed and repaired in accordance with service information.

4.4Repairable parts are reconditioned to restore full serviceability in accordance with vehicle manufacturer specifications, and are ofneat appearance where the repair is exposed in accordance with company requirements.

Rangebrackets, motors, switches, relays, connectors, wiring.

4.5Treatment that will inhibit corrosion and restore original colour and appearance is applied to repaired parts.

4.6Non-repairable faulty components are replaced with new parts of at least equivalent specification to restore full serviceability in accordance with company requirements.

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