Career guide

Heavy vehicle diagnostic technician: career guide and training

As a heavy vehicle diagnostic technician you repair and maintain heavy commercial vehicles, trucks and buses.

What will you do?

Working as a diesel technician or maintenance technician for industrial vehicles, you determine the right approach, prepare the workstation and the vehicle, and diagnose faults before you replace or repair parts. You then test and adjust the vehicle and prepare it for delivery. You keep clear work records, follow the maintenance schedule and the regulations, and always work safely and with respect for the environment.

  • Determine the type of intervention and the right approach
  • Prepare the workstation and the vehicle
  • Diagnose faults and breakdowns
  • Repair or replace vehicle parts
  • Test and adjust the vehicle
  • Prepare the vehicle for delivery
  • Keep work records and work safely and cleanly

Skills to develop

  • Technical education in vehicle mechanics or electromechanics
  • Insight into engines, electrics and electronics of heavy vehicles
  • Structured, precise diagnostic way of working
  • Ability to read technical documentation and follow schedules

Your foundation for this occupation

Combine diagnostics with pneumatics, electronic controllers and body equipment. A complaint may involve several connected systems.

From preparation to your first day

  1. Develop the practical skills

    Practise analysis with diagrams, diagnostic equipment and targeted measurements. Record whether faults occur while driving, loading or operating body equipment.

  2. Check your work

    Check the repaired system and its interaction with other functions. Report measurement evidence and remaining limitations to the workshop.

How can you grow?

Progress to brand specialist, technical fleet support or maintenance-team training.

Frequently asked questions

Why also inspect the vehicle body equipment?

A tail lift, crane or other body may use vehicle power and signals. The fault can lie at the interface between chassis and body equipment.

Sources and training

Could this be your match?

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