Typical DIY steps
- Park safely, ignition off, keys away from the car
- Disconnect the negative battery terminal and wait
- Remove the trim that hides the ECU without forcing SRS plugs
- Unplug the connector, undo the fixings, lift the module out
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Specialists in crash data & module repair
Need the airbag ECU out for a postal crash data reset? Find the module, read the part number, remove it safely, and pack it for post.
This is general guidance for people preparing a module for a UK postal reset. It is not a substitute for your vehicle’s workshop manual. Airbag systems can store charge after the ignition is off. Always disconnect the negative battery terminal and wait before you unplug yellow SRS connectors or the airbag ECU itself.
If you are unsure at any point, stop and ask a garage to remove the module. You can still order the reset, hand them the packing instructions, and have them refit it when it returns. We work with DIY owners and trade customers every week.
The airbag control module is a small metal or plastic box with a multi-pin connector and a label full of part numbers. Common places include under the centre console between the front seats, under a front seat, on the transmission tunnel, or behind a lower dash trim panel. Commercial vans and motorhomes can hide it under seats or behind cabin panels.
Search your make and model plus “airbag module location” for photos, or use our finder once you have the label in hand. The part number matters more than guessing from the car alone.

Before you seal the parcel, photograph the sticker on the airbag module. Capture every line: OEM part number, supplier code, and any suffix letters. Those characters decide which airbag module reset you order and which price band applies.
Most car and van resets are £35. Harder ECUs show as complex at £46. Motorhome B0100-49 work is £65. If the print is worn or shiny, WhatsApp a photo to Airbag Reset UK and we will match it.
When the module returns, refit it with the battery still disconnected, reconnect the plug fully, secure the fixings, then reconnect the battery. In most post-crash cases the light clears once bags and belts are already repaired and the ECU has had a proper crash data clear.
Still learning the jargon? Read what crash data is, or compare reset vs replace if someone told you to buy a brand-new unit.
Three steps
Order online, post the module, plug it back in. Read the full process.
Search the part number stamped on the ECU, or send a photo of the label. Not sure? WhatsApp us and we will help you find the right module.
Pay by card, bank transfer, or call us. Pack the module securely and send it with your order details inside.
We clear the crash data, test the unit, and send it back ready to fit. Most morning arrivals go out the same day.
Short reads to help you find the right module and know what happens next.

Where to look on the ECU label, what the codes mean, and how to order the right reset first time.
Read Guide
A plain-English look at what we clear, how we test the unit, and when it is ready to fit again.
Read Guide
Why the light stays on, when a postal reset is the right next step, and what to check before you send it.
Read GuideReal feedback from drivers and garages who send modules to us every week.
Posted my BMW airbag module on Monday and had it back Wednesday. Clear emails the whole way and the airbag light went straight out.
WhatsApped a photo of the label and they found the right module for me. Fair price, insured postage, and the crash data reset sorted it.
We send customer airbag modules from the garage every week. Same-day turnaround when it arrives in the morning. Proper reliable.
Airbag light stayed on after a minor shunt. Ordered the postal reset online, packed it up, and plugged it back in when it came home. Job done.
Needed a Ford airbag ECU cleared and was worried about buying the wrong reset. They checked the part number and talked me through it. No fuss.
Motorhome airbag light on a Fiat Ducato. They knew the module straight away. Posted it Friday, back early the next week. Really helpful lot.
Fixed public prices for the reset. Return shipping is chosen separately at checkout.
When the reset is done, we send your module back the way you choose at checkout. Royal Mail Tracked 24, Tracked 48, or free workshop collect if you are picking it up in Manchester. That return leg is separate from the reset price.
Most airbag ECUs sit in the centre of the car: under the centre console, under a seat, behind a lower dash panel, or on the transmission tunnel. Exact location varies by make and model. If you are unsure, a garage can remove it quickly.
Yes. Disconnect the negative battery terminal and wait before unplugging SRS connectors. Airbag systems store energy. If you are not comfortable working around restraints, ask a garage to remove and refit the module for you.
Look at the sticker on the ECU case. Note every line of the part number, including suffix letters. If the print is worn, WhatsApp a clear photo to us and we will match it to the right reset.
Yes. Order the matching reset online, pack the ECU so it cannot rattle, and send it to Universal Square, Devonshire St N, Manchester M12 6JH. Most resets are £35, complex £46, motorhome B0100-49 £65.
Many competent DIY owners do it carefully with the battery disconnected. If you have any doubt about airbag connectors, yellow SRS plugs, or trim that hides pretensioners, stop and use a garage. The reset itself happens on our bench either way.
Bubble wrap or foam around the ECU, a strong box, and your order details inside. Do not leave loose metal against the connector pins. Photograph the label before sealing the parcel.
More guides: all guides. How it works end to end: how it works.