NZQA Expiring unit standard / 15384 version 4
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Title / Demonstrate knowledge of electronic diesel management
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 electronic diesel management systems, and electronic diesel engine management component testing procedures.
Classification / Motor Industry > Automotive Fuel Systems and Exhaust
Available grade / Achieved

Guidance Information

1Legislation relevant to this unit standard includes but is not limited to – Land Transport Rule: Vehicle Exhaust Emissions 2007, Rule 33001/2.

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

3Definition

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.

Outcomes and Performance criteria

Outcome 1

Demonstrate knowledge of electronic diesel management systems.

Performance criteria

1.1Management controls for management systems on an engine are described in accordance with manufacturer specifications.

Rangeincludes but is not limited to – idle speed, self-diagnostic codes, emission systems, start of injection, timing advance controls.

1.2Conditions sensed by an engine management system are described in accordance with manufacturer specifications.

Rangeincludes but is not limited to – crankshaft position, engine speed, air inlet temperature, boost pressure, engine coolant temperature, throttle position, vehicle speed, timing control, cranking signal, fuel temperature, beginning of injection, accelerator position.

1.3Systems controlled from the electronic control unit (ECU) are identified in accordance with manufacturer specifications.

Rangeincludes but is not limited to – glow control unit, diagnostic system, fuel injection pump, air conditioning compressor, torque control.

Outcome 2

Demonstrate knowledge of electronic diesel engine management component testing procedures.

Performance criteria

2.1Engine management component testing procedures are described in accordance with service information and legislative requirements.

Rangeincludes but is not limited to – crankshaft position sensor, engine speed sensor, relays, wiring harness, connectors, ECU, air inlet temperature sensor, boost pressure sensor, engine coolant temperature sensor, vehicle speed sensor, cranking signal sensor, fuel temperature sensor, throttle position sensor, timing control sensor, accelerator potentiometer.

Replacement information / This unit standard was replaced by unit standard 31058.

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 Assessment
Registration / 1 / 23 February 1999 / 31 December 2020
Review / 2 / 19 April 2002 / 31 December 2020
Review / 3 / 25 January 2008 / 31 December 2020
Review / 4 / 1 March 2018 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0014

This CMR can be accessed at

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