4D0959655C — airbag ECU crash data reset
Airbag control unit fitted to the Audi A8, built by Bosch with 11KA4 memory. Upload the dump you read from the module and download it back with the crash data removed.
| Part number | 4D0959655C |
|---|---|
| Vehicle | Audi A8 |
| Module manufacturer | Bosch |
| Memory / MCU | 11KA4 |
| Dump size | 640 bytes — from a dump we have processed |
| Method | Crash data cleared from the memory dump |
| Price | 20 tokens (from 14.29 € per reset) |
Verified module. We have already processed this module type and hold a reference pattern for it, so the reset is done straight away.
Reading the 11KA4 microcontroller
This module has no separate EEPROM: the crash data is kept in the internal EEPROM of its Motorola 68HC11K microcontroller (11KA4). Read it over bootstrap mode with a programmer that supports this MCU.
The 11KA4 dumps we have processed so far were 640 bytes.
Make two reads and compare them before you upload, and keep the original file as your backup.
How the reset works for this module
- Read the 11KA4 memory of the 4D0959655C module with your programmer and save the dump.
- Upload that file here and enter the part number 4D0959655C.
- We remove the crash record and return the repaired file, usually within minutes.
- Write the file back to the module and clear the fault codes.
Before you fit it back: clearing crash data does not repair the car. Deployed airbags, used pretensioners and damaged sensors must be replaced and the system checked fault-free before the vehicle goes back on the road.
No programmer? You can also send us the module. More answers in the FAQ.