find your part
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 4.89
Great service 5/5

Fantastic service from, pick up and delivery what more could you ask for, hassle free. Great service all round, would highly recommend

Genuinely One Of The Best Services I’ve Ever Used 5/5

My 2016 Land Rover Disco gear select knob got stuck in drive and even with car turned off it wouldn’t reset. Took unit apart and sent to ECU Testing and it came back better than new and solved my problem! So a fault that would have been thousands to repair through Land Rover ended up costing me just over £300. I can’t recommend ECU Testing more - one of the best companies I’ve ever dealt with despite never meeting or speaking to anyone!


Very quick efficient service in terms of arranging collection, communication during testing, repairing unit, and return.