24450 version 1
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Level 4
Credits 4
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: a vehicle climate control system; identifying and locating faults in a vehicle climate control system; and rectifying electrical and electronic faults in a climate control system.
Subfield Motor Industry
Domain
Status
Status date
Date version published
Automotive Heating, Ventilation, and Air Conditioning
Registered
25 January 2008
25 January 2008
Planned review date
Entry information
31 December 2012
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 and publications relevant to this unit standard include but are not limited to
– Health and Safety in Employment Act 1992; Ozone Layer Protection Act 1996;
Motor Trade Association (MTA) Automotive Air Conditioning Code of Practice .
2 MTA Automotive Air Conditioning Code of Practice is available from the Motor Trade
Association, PO Box 9244, Wellington, phone 04 385 8859, website http://www.mta.org.nz/ .
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New Zealand Qualifications Authority 2020

24450 version 1
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3 Definitions
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.
4 This unit standard can lead on to unit standard 906, Test for and rectify vehicle climate control system faults .
Element 1
Demonstrate knowledge of a vehicle climate control system.
Performance criteria
1.1 Layout of the electronic climate control system is described in accordance with vehicle manufacturer specifications.
Range may include but is not limited to – electrical circuits, motor, sensors, stepper motor.
1.2 Features of electronic climate control system are described in accordance with vehicle manufacturer specifications.
Range includes but is not limited to – automatic, manual, temperature settings, self-check.
Element 2
Demonstrate knowledge of identifying and locating faults in a vehicle climate control system.
Performance criteria
2.1 Suitable tools and equipment to locate and repair faults are identified in accordance with vehicle manufacturer specifications.
2.2 Self-test codes that identify faults are described in accordance with vehicle manufacturer specifications.
2.3 Testing and identifying a faulty circuit and its components are described in accordance with service information.
2.4 Circuits that are not covered by a self-test function are identified, and testing procedures described, in accordance with service information.
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New Zealand Qualifications Authority 2020

24450 version 1
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2.5
Element 3
Precautions when testing electrical circuits are described in accordance with service information.
Demonstrate knowledge of rectifying electrical and electronic faults in a climate control system.
Performance criteria
3.1 Procedures for rectifying electrical connections are described in accordance with service information.
Range cleaning and sealing by the manufacturer approved methods, repairing components, replacing components.
3.2 Procedures for removing and replacing sensors and actuators are described in accordance with service information.
3.3 Procedures for removing and replacing electronic control and display units are described in accordance with service information.
3.4 Precautions to prevent damage that could be caused by electrostatic discharge are described in accordance with service information.
Range shielding of components, earthing of operator.
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) info@mito.org.nz
if you wish to suggest changes to the content of this unit standard.
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New Zealand Qualifications Authority 2020