Bosch airbag ECUs — the most common SRS module
Bosch is the dominant supplier of airbag ECUs worldwide. Their 0 285 series SRS modules are fitted in an enormous range of vehicles — from Fiat and Alfa Romeo to BMW, Mercedes-Benz, Ford, Hyundai, Kia, Mazda, Peugeot, Citroën and many others. If your vehicle has been in an accident and the airbag light won't go out, the ECU almost certainly needs a crash data reset.
We support over 1,346 Bosch airbag ECU part numbers in our database, covering the full 0 285 000 through 0 285 020 range. You can check whether your specific part number is supported on our Supported Models page.
What you need before starting
To reset Bosch airbag crash data using our online service, you need a bench programmer capable of reading Bosch SRS ECUs. Common tools used by professional workshops include:
— BDM100 / BDM Frame programmer
— MiniProg or compatible SPI/BDM tool
— Autocom / Delphi with bench mode support
— Any tool capable of producing a full binary dump of the ECU memory
The ECU must be fully removed from the vehicle and read on the bench. The resulting file is typically a .bin, .ori, .hex or .flash file.
Step-by-step: resetting Bosch crash data online
Step 1 — Remove the Bosch airbag ECU
Disconnect the vehicle battery and wait at least 10 minutes before working on the airbag system. The ECU is typically located under the centre console, under the driver seat, or in the centre of the dashboard. Disconnect all connectors and remove the unit.
Step 2 — Read the binary file
Connect your bench programmer to the Bosch ECU. For most 0 285 units, the main memory chip is accessible via BDM pins or an SPI connection. Read the full binary and save it — verify the file size is correct for your ECU type (typically 512KB to 2MB).
Step 3 — Upload to EPJ Airbag Solutions
Log in to your account at EPJ Airbag Solutions, create a new service request, and upload your binary file. Enter your vehicle information and ECU part number. Each reset costs 20 tokens.
Step 4 — Receive and write the reset file
Our team processes your file and returns the crash-data-cleared binary — typically within a few hours. Download the file from your portal, write it back to the ECU using your bench programmer, reinstall the ECU in the vehicle, and reconnect the battery. Clear any remaining OBD fault codes with a scanner.
How do I know if the reset was successful?
After writing the reset file and clearing any residual OBD fault codes, the airbag warning light should extinguish on the next ignition cycle. If the light returns, it indicates a wiring fault or a sensor that was damaged in the collision — not a problem with the ECU file itself.
Supported Bosch part numbers
We support the full range of Bosch 0 285 airbag ECUs including OEM cross-reference numbers from Fiat (50xxx series), Ford (AM5T, DM5T, BM5T, GJ5T series), BMW (65.77 / 6577 series), Hyundai/Kia (95910 series), Mazda (BFD, DA6A, D09J series), Mercedes-Benz (A000, A246, A167 series) and many others.