Computer diagnostics

Computer diagnostics — we show you the read-out.

A warning light is a symptom, not a diagnosis. We read the fault codes and the live data, find what is actually causing it, and show you on the screen before quoting a fix.

Quoted · 62c Portage Road, New Lynn, Auckland 0600 · Mon–Fri 8am–5pm

Modern vehicle at Precision Automotive in New Lynn for computer diagnostics
In detail

What we can read

Modern controllers across the makes most Auckland drivers own:

  • Engine management
  • Transmission controllers
  • ABS & stability systems
  • Airbag / SRS faults
  • Emissions & sensors
  • Body & comfort modules
  • Live data streams
  • Fault-code clearing after repair

The read-out, in plain English

You get shown what the car reported and what it means — not a code number and an invoice.

Diagnose, then quote

The point of diagnostics is to stop paying for parts the car did not need. We find the cause first and quote the fix second.

Every major make

BMW, Audi, VW, Mercedes, Toyota, Honda, Nissan, Subaru, Mazda, Ford and more — European, Japanese and domestic.

Straight answers

Computer Diagnostics — the questions we get asked.

What does a diagnostic check cost?

Diagnostics are quoted — the time needed depends on the fault and the vehicle. We will tell you what it will cost to find the problem before we start, so the diagnosis itself is never the surprise.

My engine light is on. Is it safe to drive?

It depends on what triggered it. A steady light usually means a fault has been logged and should be looked at soon; a flashing light generally means stop driving, because continuing can damage the catalytic converter. Call (09) 827 0322 and describe it and we will tell you honestly.

Can you clear a fault code?

We can, but clearing a code without fixing the cause just means it comes back — and it will still be there at WoF time. We diagnose the underlying fault, fix it, then clear the code.

Do you diagnose European cars?

Yes. Our equipment reads modern controllers across BMW, Audi, VW and Mercedes as well as Japanese and domestic makes.