Clearing internal airbag ECU EEPROM error B0100 with a Raspberry Pi (Boxer/Ducato/Jumper)

Описание: This video shows how to clear the fault codes in the airbag controller ECU EEPROM chip.
These show up as B0100 or B010049 when reading error codes..

Clearing them is not something that can be done via the OBD2 connector as I show using Lexia/Diagbox, so it involves some soldering and accessing the SPI EEPROM directly via, for example, a Raspberry Pi.

=============================
Chapters:

00:00 Problem description
00:53 Diagnostic tool readout
02:14 Getting to the EEPROM chip
05:10 Reprogramming the EEPROM chip with the Raspberry PI
08:15 Reassembly
10:32 Test

==============================
Tools and code:

The adapter I used can be found at (you need the TSSOP version):
https://www.aliexpress.com/item/10050...

The code for reading and writing the EEPROM chip can be found at:
https://github.com/ToThePointTechDev/...


Note: as long as youtube is preventing me from posting external links by truncating them, here are chopped up versions:
https://www.aliexpress.com/item/
1005003958961361.html

and
https://github.com/ToThePointTechDev/
Raspberry_spi_eeprom_spidev_lib

==============================
Commands:

The command for activiting the SPI peripheral (assuming it is not yet already enabled, otherwise see the last command):
sudo dtoverlay spi0-1cs cs0_pin=8

To compile the code for the M95640 eeprom (see the github page for a list of all the supported eeproms):
cc -o main main.c eeprom.c spidev_lib.c -DM95640

To read out the eeprom and write the contents to an output file named contents_fault.bin
./main -o contents_fault.bin

To write the eeprom with the contects of an input file named contents_cleared.bin (note: writing takes a while)
./main -i contents_cleared.bin

To read out the eeprom as a verification step
./main -o contents_check.bin
If you want to disable the SPI peripheral again afterwards:
sudo dtoverlay -r spi0-1cs