ECU & Module Testing Service
Advanced bench diagnostics for ECUs, instrument clusters, BCMs, ABS and SRS modules. We accurately test, diagnose and verify electronic components before installation or repair — saving you time and unnecessary parts costs.
Retail customer? See our standard ECU remapping services instead.
Fast turnaround
Most modules tested within 24–48 hours
UK postal service
Secure handling and packaged return
Bench simulation
We simulate full vehicle conditions
Repair / replace report
Clear written outcome on every test
Modules We Test
If your module isn't listed, ask — we test most automotive electronic control units.
ECU / ECM
Engine control units — communication, internal failure, power and software fault testing.
Instrument Clusters
Gauge failure, backlight problems, display faults and CAN errors.
BCM
Body control modules — lighting, locking and configuration faults.
ABS Modules
Internal electronic faults and CAN issues.
Airbag / SRS
Crash data presence and module communication.
Immobiliser Modules
Comm faults and key data integrity.
TCU / Gearbox Modules
Internal failures and shift faults.
Gateway Modules
CAN routing and ignition input testing.
What's Included in Every Test
Every test goes through the full diagnostic pipeline so you know exactly what's wrong before deciding whether to repair or replace.
- Communication integrity check across all CAN/LIN buses
- Power supply and ground response verification
- Internal fault detection on key components
- Software corruption / firmware integrity testing
- Bench simulation of vehicle conditions
- Written diagnosis with repair vs replace recommendation
How to Send Us a Module
Sending a module for testing is simple — follow these four steps and we'll handle the rest.
Send the module to our workshop
- 1
Remove the module carefully from the vehicle (anti-static handling)
- 2
Package it securely in anti-static or bubble wrap
- 3
Include your contact details, vehicle make/model/year and fault description
- 4
Use a tracked delivery service to our Rutherglen workshop
Once received, we’ll bench test the unit and contact you with a full diagnosis and clear repair-or-replace recommendation. Workshop address provided at booking — message us on WhatsApp to start.
Check if we service your module
Paste an ECU type or part number from your faulty module and see instantly whether we cover it, what services we offer, and the starting price.
Database includes ECUs, BCMs, FEM/BDC, CEM, instrument clusters, TCUs, ABS modules and more.
Our coverage database grows with every job we complete. If your specific part number isn’t listed but the ECU type matches, there’s a strong chance we still cover it — ask us.
Pricing
Pricing is case by case and depends on the vehicle, the service required, and whether it’s a file or a physical module.
Send us the details — we’ll confirm a firm price and turnaround before any work begins. Regular trade customers can set up an account with agreed rates.
Ready to send a file or module?
WhatsApp is usually the fastest way to reach us. Send vehicle details, the fault, and the original file if you already have it — we'll respond with a firm price and turnaround.
Doyen Auto Services Ltd · 59 Southcroft Road, Rutherglen, Glasgow G73 1UG · Tel 0141 483 0726 · Mobile 07760 926245 · support@doyenautos.co.uk