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If a warning light appears on your dashboard

If a warning light or fault code appears on your dashboard you’ll need to get it checked as soon as possible. Whilst it may be something very minor, warning lights could also indicate a more serious problem. It may be tempting to delay booking your vehicle into the workshops but the earlier we can investigate the issue, the less likely it will be that damage is done.


What is a diagnostic health check?

Nowadays, modern vehicles have an onboard computer called an ECU (Engine Control Unit). Sensors around your vehicle continually monitor performance, alerting the ECU if any problems occur. A modern vehicle can produce thousands of different fault codes and warning messages, having the correct equipment and expertise to read the codes is vital in diagnosing any potential problems.

Sensors in your vehicle continually report to the ECU (Engine Control Unit) on how they are performing. If a problem occurs, it logs a fault code on the ECU’s memory.  A diagnostic code reader has to be used to read the fault or message and to clear any fault codes from the memory.

Diagnostic tools

Our branches have a range of the latest Snap-On and Delphi diagnostic tools that quickly find the root of the problem. We use different systems in a variety of branches as this gives us a much wider coverage than most other independent garages.

The cost of our diagnostics is fixed at £39.95 in all our branches. 

If we discover problems with your engine or other components we’ll provide you with a free, no-obligation repair quote.

What problems does the ECU pick up?

The ECU can pick up problems with emission levels, engine temperatures and even windscreen wipers. You may see a warning light on your dashboard but this only gives you a very small part of the picture. Our diagnostic health checks read these error messages and identify the root cause, so component failures can be prevented before they lead to further damage and expensive repairs.