Vehicle Diagnostics & Fault Finding

Modern vehicles rely on electronic systems. Our diagnostic equipment reads your vehicle's systems to identify faults quickly and accurately — so you know exactly what needs doing.

Diagnostics

How diagnostics work

Today's vehicles are packed with sensors and electronic control units. When something isn't right, a warning light appears on your dashboard — but the light alone doesn't tell the whole story.

Using modern diagnostic equipment, we connect to your vehicle's systems to read the fault codes, pinpoint the cause, and advise on the right repair. It takes the guesswork out of finding the problem.

  • Accurate fault identification
  • Clear, honest advice on what's needed
  • Saves time and unnecessary repairs
  • All makes and models
Vehicle diagnostic equipment at William Jones Motors
Warning Lights

Common Warning Lights We Diagnose

If you see one of these lights on your dashboard, don't ignore it — get in touch and we'll help identify the cause.

Dashboard warning lights on a modern car

Engine Management Light

Can indicate a range of engine or emissions-related faults that need diagnosing.

ABS Light

Suggests an issue with your anti-lock braking system that should be checked.

Airbag Warning Light

Indicates a fault with your airbag or restraint system — important to investigate.

DPF Warning Light

Points to a diesel particulate filter issue that may need cleaning or repair.

Battery Warning Light

Often signals a problem with the battery, alternator or charging system.

AdBlue Warning Light

Relates to the emissions fluid system on many modern diesel vehicles.

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Book Diagnostics

Tell us which warning light you've seen or describe the symptoms, and we'll arrange to diagnose your vehicle.

Need an MOT, Service or Repair?

Don't ignore that warning light or unusual noise. Contact your local garage today and let our team help get you safely back on the road.

Or call us on 01785 812568
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