AUR31120- Certificate III in Heavy Commercial Vehicle Mechanical Technology

Put your training and experience to use with ITEC’s RPL services and earn a nationally recognised qualification with a AUR31120- Certificate III in Heavy Commercial Vehicle Mechanical Technology via our RTO partners.


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Qualification Overview

Qualification Name:

Certificate III in Heavy Commercial Vehicle Mechanical Technology

Qualification Code and Units of Competency:



Within four weeks of receiving sufficient and complying evidence of competency in all applied for units of competency.

This qualification of a AUR31120- Certificate III in Heavy Commercial Vehicle Mechanical Technology provides the knowledge and skills required by an individual who wishes to work in the light vehicle automotive repair and service industry. Despite the specialized-sounding title, this is a general and highly practical degree for any person looking to get involved in the automotive mechanic industry. You will be qualified to tackle such universally important tasks as engine and transmission repairs, maintenance on steering, and other vital vehicle systems, especially on consumer automobiles.

Qualified workers in this trade often find themselves with opportunities to advance into a specialist position through their work, or in establishing their own mechanics’ business. Less typical paths of advancement exist in the design and development of today’s vehicle diagnostic software and tools or mechanics aids.

To qualify for this certificate, you must provide evidence demonstrating that your skills and knowledge align with the courser’s learning outcomes. This evidence can take various forms. Demonstrating your current proficiency at a comparable level can be done through a CV (your student support representative can assist with this), an employment letter, or an employment contract.

Additionally, documents from prior work or educational experiences, such as references from licensed tradespeople you’ve collaborated with, apprenticeship records, academic transcripts, or assessments from relevant past qualifications, all contribute to the Recognition of Prior Learning (RPL) process. You can also submit proof of overseas qualifications or visual evidence of your work, especially for practical roles.

Required documents
Payslips/work contract/ABN if self-employed
Photos/videos (for practical roles)
Risk Assessment and Management Documents
Incident Report Forms
Plans and Specifications
Job Cards

Anywhere in Australia, you can obtain a certification with a nationally acknowledged credential.
Get certified within four weeks of receiving the evidence
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  • Grenfell Institute of Technology Adelaide RTO: 45979
  • Trinity Institute (Australia) RTO: 41310
  • Institute of Intellect Blending RTO: 41282
  • IH Sydney Training Services RTO: 91109
  • Berkeley Business Institute RTO: 40693
  • Danford College RTO: 21979
  • Elizabeth Institute of Australia: 41286
  • Bayside English College: 21974
  • Melbourne City College Australia: 45140
  • Wattle College: 45676
  • Skillset Training: 41436
  • Astley English College Australia
  • Australia Institute of Business and Technology: 41138
  • Australian Vocational Training Academy: 45879
  • National Polytechnic Of Australia: 45960 
  • Reach Community College: 40747


Take a free, 60-second skill test

We have up-to-date schedules, and contact information, & let you book appointments online.

Qualification Description

Qualification Description

This qualification reflects the role of individuals who perform a broad range of tasks on a variety of heavy commercial vehicles in the automotive service and repair sector.

No licensing, legislative or certification requirements apply to this qualification at the time of publication.

Entry Requirements


Packaging Rules

Total number of units = 36

22 core units , plus

14 elective units , of which:

  • 1  unit must be from one of the Specialist Elective Groups A or B below
  • of the remaining 13  units required to make up the elective unit total:
  • up to 13  may be from the Specialist Elective Groups and/or the general elective units listed below
  • up to 6  may be from a Certificate II qualification or above in this Training Package or another endorsed Training Package or accredited course.


Elective units chosen must be relevant to the work environment and the qualification, maintain the overall integrity of the AQF alignment, not duplicate the outcome of another unit chosen for the qualification, and contribute to a valid vocational outcome.

Core Units

AURAEA002 Follow environmental and sustainability best practice in an automotive workplace

AURASA102 Follow safe working practices in an automotive workplace

AURETR112 Test and repair basic electrical circuits

AURETR122 Diagnose and repair vehicle dynamic control systems

AURETR124 Diagnose and repair compression ignition engine management systems

AURETR125 Test, charge and replace batteries and jump-start vehicles

AURETR129 Diagnose and repair charging systems

AURETR130 Diagnose and repair starting systems

AURHTB101 Diagnose and repair heavy vehicle air braking systems

AURHTD102 Diagnose and repair heavy commercial vehicle steering systems

AURHTD103 Diagnose and repair heavy commercial vehicle suspension systems

AURHTE102 Diagnose and repair heavy vehicle compression ignition engines

AURHTQ103 Diagnose and repair heavy vehicle drive shafts

AURHTZ101 Diagnose and repair heavy vehicle emission control systems

AURTTA006 Inspect and service hydraulic systems

AURTTA104 Carry out servicing operations

AURTTA118 Develop and carry out diagnostic test strategies

AURTTC103 Diagnose and repair cooling systems

AURTTF102 Inspect and service diesel fuel injection systems

AURTTF105 Diagnose and repair engine forced-induction systems

AURTTK102 Use and maintain tools and equipment in an automotive workplace

AURTTQ001 Inspect and service final drive assemblies

Specialist Elective Units 

Group A: Heavy Vehicle Manual Transmission

AURHTX101 Diagnose and repair heavy vehicle manual transmissions

Group B: Heavy Vehicle Automatic Transmission

AURHTX103 Diagnose and repair heavy vehicle automatic transmissions

General Elective Units 

AURAFA103 Communicate effectively in an automotive workplace

AURAMA001 Work effectively with others in an automotive workplace

AURETR120 Diagnose and repair network electronic control systems

AURETR132 Diagnose and repair automotive electrical systems

AURETR143 Diagnose and repair electronic body management systems

AURETR144 Diagnose and repair integrated engine and transmission management systems

AURETU103 Service air conditioning and HVAC systems

AURETU104 Diagnose and repair air conditioning and HVAC components

AURETU105 Retrofit automotive air conditioning and HVAC systems

AURHTB002 Diagnose and repair heavy vehicle hydraulic and air over hydraulic braking systems

AURHTB107 Diagnose and repair heavy commercial vehicle electronic braking systems

AURHTD104 Carry out heavy vehicle wheel alignment operations

AURHTE001 Remove and install heavy vehicle engine assemblies

AURHTF102 Diagnose and repair heavy vehicle diesel fuel injection systems

AURHTJ103 Remove, inspect and refit heavy vehicle wheel and tyre assemblies

AURHTJ106 Remove, inspect, repair and refit heavy vehicle tyres and tubes

AURHTL101 Inspect, diagnose and repair alternative fuel systems in heavy vehicle engines

AURHTQ102 Diagnose and repair heavy commercial vehicle final drive assemblies

AURHTX002 Inspect, test and replace heavy vehicle automatic transmissions

AURHTX104 Diagnose and repair heavy vehicle clutch systems

AURHTY001 Inspect and service mechanical connections of heavy vehicles and trailers over 4.5 tonnes

AURHTY102 Diagnose and repair mechanical connections of heavy vehicles and trailers over 4.5 tonnes

AURTTA014 Assemble and install pneumatic system components

AURTTA105 Select and use bearings, seals, gaskets, sealants and adhesives

AURTTA113 Diagnose and repair hydraulic systems

AURTTB004 Inspect and service air braking systems

AURTTB006 Inspect, service and repair auxiliary braking systems

AURTTB101 Inspect and service braking systems

AURTTC002 Repair radiators

AURTTD002 Inspect and service steering systems

AURTTD004 Inspect and service suspension systems

AURTTE104 Inspect and service engines

AURTTK001 Use and maintain measuring equipment in an automotive workplace

AURTTL003 Install CNG fuel systems

AURTTL009 Install LPG fuel systems

AURTTL104 Inspect and service LNG fuel systems

AURTTL105 Diagnose and repair LNG fuel systems

AURTTX102 Inspect and service manual transmissions

AURTTX103 Inspect and service automatic transmissions

AURTTZ102 Diagnose and repair exhaust systems

AURVTW018 Carry out oxyacetylene welding, thermal heating and cutting

AURVTW101 Carry out manual metal arc welding on components

AURVTW103 Carry out advanced gas metal arc welding on vehicle body sections

AURVTW104 Carry out tungsten inert gas welding

Four Easy Steps To Get Qualified

Free Skills Assessment

Speak to ITEC Australia about your goals, and allow us to guide you towards the qualification that will help you reach them.

Portfolio of Experience

Your dedicated consultant will guide you through the process of putting together a portfolio of evidence. This can contain overseas qualifications, transcripts, certificates, photos and videos, samples or work examples, letters of reference, your current resume, etc.

Evidence Review

Once one of our partner registered training organisations (RTOs) has assessed your portfolio, the assessor assigned to your case may be in touch if any additional evidence is required. If you have any weak areas, the RTO may assign a trainer to upskill you at no cost to you.

You’re Qualified

ITEC Australia is partnered with Registered Training Organisations whose qualifications are nationally recognised in Australia, and are the same as the qualification you would receive from full time study. Qualifications can also be useful for licensing or immigration purposes.