Diagnostics & fault finding
Services

Diagnostics & fault finding

A warning light is a symptom, not a diagnosis. We read the fault, work out what is actually causing it and tell you what needs doing β€” on site where we can, in the workshop where the job needs it. The point is to identify the problem properly rather than replace parts until the light goes out.

Reading the fault properly

Modern commercial vehicles report a great deal about themselves, and most of it needs interpreting. A stored code narrows the search; it rarely finishes it. We take the code as the starting point and then test the circuit, the sensor and the component to find out which one is actually at fault.

What we diagnose

Engine management and emissions systems, electrical and lighting faults, air and braking system problems, ABS and EBS, sensors and wiring, and the intermittent faults that are hardest to pin down because they refuse to appear on demand.

On site wherever possible

Diagnostic equipment goes out on the van, so a vehicle showing a fault in your yard does not automatically become a workshop booking. Plenty of faults can be read, diagnosed and repaired on your premises the same day.

Intermittent faults

The fault that will not reproduce is the one that costs operators the most, because it gets diagnosed three times and fixed once. Where a fault is intermittent we will say so, explain what we can and cannot confirm, and agree an approach with you rather than fitting parts speculatively and hoping.

What you get told

Plain English: what the fault is, what is causing it, what it will take to put right, and what happens if it is left. Enough to make a decision about a vehicle and a driver's day.

What's included

  • Engine management and emissions system diagnostics
  • Electrical, lighting and wiring fault finding
  • Air, braking, ABS and EBS system diagnosis
  • Sensor and circuit testing beyond the stored fault code
  • Diagnostic equipment carried to your site
  • Honest handling of intermittent faults, with the limits explained
  • Findings explained in plain English before any work is agreed
  • Repair carried out on site or in the Melbourne workshop
Reviews

Loved by customers

5.0 Β· from 4 verified reviews

Pulled in by a wrecker with a knackered clutch on my daf about 1130. The lads were on the job as soon as the part came in and had in finished and back on the road by 1715. Cracking job only wish you could give more than 5* Thanks Nick, Kaleb and Ben for getting me sorted and back on the road the same day πŸ‘πŸΌ
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trevor smith
Sept 2026
Took my preserved bus into here and my car for work to be done ,great service,fast and efficent, good prices will definitely use again highly recommend πŸ‘
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Ben Doughty
Sept 2026
The guys here are brilliant very accommodating no job to big or small, they work fast and to a very high standard as in this business a vehicle of the road is lost money and they understand this. Highly recommend πŸ‘Œ
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horizontravelgroup
Aug 2026
We use Trucktek for our maintenance, great bunch of guys with fountains of knowledge. Highly recommended.
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Minibus Experts
Aug 2026
Good to know

Frequently asked questions

Usually, yes. Diagnostic equipment goes out on the van, so a vehicle showing a warning light in your yard can often be read, diagnosed and repaired on your premises the same day without a workshop booking at all.

What we do

More of what we do

Ready when you are

01332 916028