Question 1

What does a diagnostic scan actually tell you?

Accepted Answer

A scan reads the fault codes stored by the vehicle's control modules and shows live sensor data. Codes point to the system reporting a problem, not always the part that has failed, so CDC Mobile interprets the codes alongside testing rather than replacing whatever the code names.

Question 2

My check engine light is on but the car drives fine. Should I still book?

Accepted Answer

Yes. A steady check engine light often reflects an emissions or sensor fault that will not stop the car immediately but can increase fuel use and lead to more expensive damage. A flashing light indicates a fault that can damage the catalytic converter, and you should stop driving and have it looked at.

Question 3

Can you diagnose an intermittent fault?

Accepted Answer

Often, but it takes longer. Intermittent faults may not be present during the appointment, so CDC Mobile checks stored and pending codes, freeze-frame data and live readings to narrow the cause. Note when the fault happens — cold start, after rain, at speed — as that detail materially shortens the diagnosis.

Question 4

Is the diagnostic fee credited against the repair?

Accepted Answer

Ask when you book. Diagnosis is charged as its own task because it is testing time rather than parts. CDC Mobile quotes any repair separately once the cause is identified, and seeks your approval before chargeable work continues beyond the agreed scope.

Diagnostics
at your location.

Good service
starts with clarity.

Clear answers
before you book.

Need this service?

Diagnosticsat your location.

Good servicestarts with clarity.

Clear answersbefore you book.

Need this service?

Diagnostics
at your location.

Good service
starts with clarity.

Clear answers
before you book.