Diagnostics

We measure before we quote. A fault code narrows the search; it does not end it.

When to have it looked at

  • A warning light with no obvious symptom behind it.
  • Reduced power, a limp mode, or a car that will not wake up.
  • A fault another workshop has already replaced parts for.

Why it fails

A fault code names a circuit, not a component. The same code is thrown by a failed sensor, a chafed loom and a control unit that has lost its supply, and the only way to tell them apart is to measure. Most of the expensive mistakes we see started with a part ordered from a code.

How we work

  1. We record the condition in writing before anything is opened, and you get a copy.
  2. The unit is stripped and inspected. It is the only way to know the real state of it.
  3. Everything that matters is measured, not estimated.
  4. You get a written quote before any repair starts. Nothing proceeds without your agreement.
  5. We replace what has actually failed and what will fail next, not the whole assembly.
  6. It is tested under load and returned to you with the findings written up.

What decides the price

What moves the price is the platform, what we find once it is open — which nobody can know beforehand — and whether the original parts can be reused. That is why the quote comes after the inspection and not before it.

Turnaround, warranty and whether a teardown is chargeable are set by this workshop. Ask us before you commit.

What we have written about this

Book Diagnostics, or ask us about it first.