John Downes Garage

Est. 1973 · All Makes & Models

Car Diagnostics in Brierley Hill

If a warning light is showing, our diagnostic equipment reads the fault codes and live data from your car's systems to pinpoint the real cause — not just the symptom. We then explain plainly what's wrong and what it'll take to fix.

Modern cars are full of sensors and control modules. When something goes wrong, a warning light is only the start of the story. Our diagnostics get to the root cause quickly, saving you time and money on guesswork.

What’s Included

Full fault-code read across engine, ABS, airbag and other systems
Live data analysis to catch intermittent and sensor faults
Diagnosis of warning lights — engine management, ABS, EPC and more
Clear explanation of the cause and the fix
Honest quote before any repair work begins

How It Works

  1. 1Bring the car in with the warning light showing if possible
  2. 2We connect our diagnostic equipment and read the codes and live data
  3. 3We interpret the results to find the actual cause
  4. 4You get a plain-English explanation and an honest repair quote

Honest Pricing

A diagnostic check is competitively priced and often saves far more than it costs by avoiding unnecessary part replacement. Call us for current pricing.

Car Diagnostics FAQs

Car Diagnostics Across the Black Country

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Book Your Car Diagnostics

Give us a call or pop in to the workshop on Stamford Road, Brierley Hill — we’re always happy to help.