Certificate III in Heavy Commercial Trailer Technology
AUR31820
Trades & constructionCertificate IIINationally recognised
Level 3AQF level
28Units to complete
1 to 2 yearsAQF length guide
3Training providers
Jul 2026Latest release
Source: training.gov.au · AQF
Qualification details and status from training.gov.au, the national register of vocational education (AUR31820, current release). Typical length is the Australian Qualifications Framework volume-of-learning guide for a Certificate III; actual course length varies by provider and recognition of prior learning.More about our sources: How we check our factsOccupations and industries on the national register
Occupations
Heavy Commercial Trailer Technician
Industries
Automotive Service and Repair
Source: training.gov.au
As listed for AUR31820 on training.gov.au, the national register of vocational education: the occupations and industry areas in the register's own taxonomy, shown exactly as written. They describe the course on the register; they are not a promise of a job or a pay level.More about our sources: How we check our factsWhat you learn
To finish you complete 28 units: 11 core plus 17 electives. Units come from the official list for this course on the national register.
See all 41 units in the official listHide the unit list
AUMGTY002Install vehicle components
AURACA101Respond to customer needs and enquiries in an automotive workplace
AURAEA002Follow environmental and sustainability best practice in an automotive workplace
AURAFA103Communicate effectively in an automotive workplace
AURAQA002Inspect technical quality of work in an automotive workplace
AURASA102Follow safe working practices in an automotive workplace
AURATA002Read, interpret and apply engineering drawings
AURETR009Install vehicle lighting and wiring systems
AURETR010Repair wiring harnesses and looms
AURETR011Install basic ancillary electrical systems and components
AURETR112Test and repair basic electrical circuits
AURETR122Diagnose and repair vehicle dynamic control systems
AURHTB002Diagnose and repair heavy vehicle hydraulic and air over hydraulic braking systems
AURHTB101Diagnose and repair heavy vehicle air braking systems
AURHTB107Diagnose and repair heavy commercial vehicle electronic braking systems
AURHTD103Diagnose and repair heavy vehicle suspension systems
AURHTD104Carry out heavy vehicle wheel alignment operations
AURHTJ103Remove, inspect and refit heavy vehicle wheel and tyre assemblies
AURHTJ202Select heavy vehicle tyres, wheels and rims
AURHTJ206Remove, inspect, repair and refit heavy vehicle tyres
AURHTR105Diagnose and repair heavy commercial trailer electronically controlled roll stability systems
AURHTY001Inspect and service mechanical connections of heavy vehicles and trailers over 4.5 tonnes
AURHTY102Diagnose and repair mechanical connections of heavy vehicles and trailers over 4.5 tonnes
AURTTA006Inspect and service hydraulic systems
AURTTA011Install hydraulic systems to specified applications
AURTTA012Fabricate and install fluid power hose assemblies
AURTTA014Assemble and install pneumatic system components
AURTTA104Carry out servicing operations
AURTTA113Diagnose and repair hydraulic systems
AURTTA118Develop and carry out diagnostic test strategies
AURTTB004Inspect and service air braking systems
AURTTB006Inspect, service and repair auxiliary braking systems
AURTTB015Assemble and fit braking system components
AURTTB101Inspect and service braking systems
AURTTD004Inspect and service suspension systems
AURTTJ111Balance wheels and tyres
AURTTK102Use and maintain tools and equipment in an automotive workplace
AURVTW018Carry out oxyacetylene welding, thermal heating and cutting
AURVTW101Carry out manual metal arc welding on components
AURVTW103Carry out advanced gas metal arc welding on vehicle body sections
AURVTW109Carry out basic gas metal arc welding
Source: training.gov.au
Unit list from the AUR31820 unit grid on training.gov.au, the national register of vocational education, current release. Core and elective packaging rules are set by the course; your provider confirms which electives they offer.More about our sources: How we check our factsWho offers it
3 registered training providers can deliver this course. Pick your state to see local providers first, with everyone who can deliver there below. Or search a name. Each arrow opens the provider's page here, which links to their own website.
Providers are listed alphabetically. A listing is not a recommendation or an endorsement, and providers do not pay to appear. Based-in shows each provider's registered head office; most providers deliver online Australia-wide. The → link opens the provider's page on this site, which links to their own website. Contact the provider for current intakes, fees and study modes.