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Title / Diagnose and rectify faults in automotive instruments and gauges
Level / 4 / Credits / 5
Purpose / This unit standard is for peoplein the automotive electrical repairindustry. People credited with this unit standard are able to: demonstrate knowledge of analogue and digital instruments and gauges; test a gauge and instrument panel and associated circuits and sensors for faults; and rectify gauge and instrument panel faults.
Classification / Motor Industry > Automotive Electrical and Electronics
Available grade / Achieved
Entry information
Critical health and safety prerequisites / Unit 899, Carry out automotive wiring and circuit repairs,or demonstrate equivalent knowledge and skills.
Explanatory notes
1The following legislation and amendments are required to be consulted and followed where applicable:
Health and Safety in Employment Act, 1992.
2Reference to 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 to a professional and competent manner with due regard to safe working practices.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of analogue and digital instruments and gauges.
Rangeelectromagnetic, thermal, electronic.
Evidence requirements
1.1Electromagnetic gauges are identified, and their method of operation are described according to manufacturer’s specifications.
Rangefuel, temperature, oil pressure, voltage, speedometer, tachometer.
1.2Thermal gauges are identified, and their method of operation is described according to manufacturer’s specifications.
Rangefuel, temperature, oil pressure, voltage.
1.3The need for voltage stabilisation on an instrument panel is identified, and methods of achieving it are described according to manufacturer’s specifications.
Rangebi-metal and solid state devices.
1.4The differences between LED (light emitting diode), LCD (liquid crystal display), and VF (vacuum fluorescent) displays are identified.
1.5The operating principles of electronic gauges and instruments are defined in block diagram form.
1.6A magnetic and a mechanical speedometer and odometer are identified, and their method of operation is described according to manufacturer’s specifications.
1.7The most common types of gauge sensors (senders) are identified, and their method of operation is described according to manufacturer’s specifications.
Rangevariable resistance, rheostat, capacitive, and semi-conductor types.
Outcome 2
Test a gauge andinstrument panel and associated circuits and sensors for faults.
Rangeelectromagnetic excluding speedometer and tachometer, thermal and electronic types.
Evidence requirements
2.1Safe working practices are observed throughout the task.
Rangepersonal safety, safety of others, equipment and vehicle safety.
2.2The system is operated according to the manufacturer's instructions, and the symptoms of any fault are verified.
2.3Suitable tools and test equipment are selected and used to enable gauges and circuits to be tested.
2.4Tests are carried out in a manner that ensures any faults are accurately identified and located, and no damage is imparted to electronic semi-conductor devices.
Outcome 3
Rectify gauge andinstrument panel faults.
Evidence requirements
3.1Safe working practices are observed throughout the task.
Rangepersonal safety, safety of others, equipment and vehicle safety.
3.2Suitable tools and equipment are selected and used to enable gauges and circuit components to be removed and refitted.
3.3Any necessary precautions are taken to prevent damage to the instruments including from electrostatic discharge (ESD).
3.4Non-repairable faulty components are replaced with parts to manufacturer's specifications to restore full serviceability.
3.5Repairable faulty components are repaired to restore full serviceability.
Rangewiring, printed circuit boards.
Replacement information / This unit standard has been replaced by unit standard 24113 and unit standard 24114.This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 29 October 1993 / 31 December 2016
Review / 2 / 4 October 1996 / 31 December 2016
Review / 3 / 26 February 1999 / 31 December 2016
Review / 4 / 25 January 2008 / 31 December 2020
Rollover / 5 / 19 November 2010 / 31 December 2020
Rollover / 6 / 22 August 2014 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR 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.
NZ Motor Industry Training Organisation (Incorporated)SSB Code 101542 / New Zealand Qualifications Authority 2018