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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
Audi TT ABS Unit 5/5

ECU Testing are the best. Used them many times before, very helpful, fast turnaround and keep you up to date. Always on hand to help with technical issues and have repaired everything we sent them. Many thanks.

Vauxhall ABS/ECS ECU 5/5

We like these people, always helpful, we have had a great success rate with ecu testing, this unit was another success. We will continue to use them for all our ecu's. Another happy customer, thank you.

Rav-4 slipping gearbox cured 5/5

We have used many in the trade over the years but I can say that ECU Testing are the best. Always on hand to help with technical issues and have repaired everything we sent them.