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common ecu faults by manufacturer
common faults by part type
ABS Pump Modules

ABS pumps, ABS modules and ABS ECU's, we test rebuild and supply most types of automotive ECU units, common faults cause the ABS or ESP light to remain on...

Throttle Bodies

A faulty throttle body can cause stalling cutting out and general rough running, we can test & repair most types of throttle bodies for most vehicles...


Dashboard instrument clusters are common to fail for all makes and models of vehicle, common symptoms include; incorrect reading gauges, LCD failure or complete loss of display...

Electric Power Steering

Electric power steering columns are now used in most vehicle applications, the new generation of electric steering column are prone to frequent failure...

Gearbox ECU's

Automatic transmission ECU's are used in all modern gearbox systems and can cause frequent problems causing the gearbox to default to limp mode or even prevent the vehicle engaging gears...

Turbo Actuators

Turbo actuators are used to control variable-geometry turbochargers (VGTs). Due to manufacturing defects & harsh operating conditions these turbo actuators are prone to failure...

Rating 5
Instrument cluster repair 5/5

Excellent experience having my instrument cluster repaired, I was kept informed and the service was second to none,my car was back on the road in no time with the confidence that the repair was to a professional standard

defender missfire and cutting out 5/5

i have a defender td5 that would cut out at high revs and run off a cylinder we tried everything and then sent off the ecu to be looked at they had it for about 2 days said it was faulty so I paid the bill around £320 it was then sent back to me a day later very well packaged . plug it back in and the defender and it ran perfect cured the problem. so I would say a excellent service allround very happy

Fantastic service 5/5

First time I have used ECUtesting, recommended by a mechanic friend. Fantastic service and saved me a fortune on replacing my ECU/ABS unit from manufacturer new. Easy to book in unit and communication thereafter regarding progress was excellent. Can't recommend highly enough! Thanks ECUtesting. Cheers Bryan