Auto Electrician

OBD ECU Electrical Faults

Auto Electrics - Fault Diagnosis - Electrical Repair Estimates

Engine Diagnostics & Fault Code Reading - Use The Form for Assistance with Engine Faults

Service Requirement

Check Engine Light - Malfunction Indicator Lamp (MIL)
The Check Engine Light tells you when a problem/malfunction occurs within the engine management system.

The Check Engine Light may stay on, flash or shoe intermittently depending upon the type of engine-electrical fault.

>The Check Engine Light may remain on until the fault has been diagnosed, repaired and reset.

A built-in computer will store one or more diagnostic trouble codes (DTC) to help vehicle technicians identify the fault.


A fault-code reader is plugged into the on-board computer via the vehicle diagnostic connector.

The ignition circuit will emit a number or set of numbers that relating to the relevant fault code descriptions and indicate the circuits or components generating a fault

The Fault Code, however, does not directly indicate any parts to be replaced.

MOT & Servicing

Commercial Vehicles

  • Diesel
  • Petrol
  • Dual Fual
  • Hybrid
  • Electric
  • East Midlands
  • East of England
  • Greater London
  • North East England
  • North West England
  • South East England
  • South West England
  • West Midlands
  • North Wales
  • South Wales
  • Scotland