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BWM airbag sensor after car crash and airbag deployment can by locked (Control unit faulty) and must be replaced. Even after small accident Airbag sensor will write in internal memory special error message “crash data stored” or “computer fault” and after you need to exchange very expensive sensor to new one.
Preparation:
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We are glad to present new device for BMW Airbag repair. You can see some differences between old and new devices bellow:
| Link to PC | Read DTC Errors | Clear DTC Errors | Clear Crash Data | EEPROM Read/Write | |
| Old Tool | Serial COM1 | +/- | + | +/- | – |
| New Too | USB | + | + | + | + |
+/- supported units ZAE, MRSZ, MRSZ3, MRSZ4 (not all)
+ supported units BAE, ZAE, ZAE2, MRSZ, MRSZ2, MRSZ3, MRSZ4
There are few major types of BMW Airbag ECU`s:
1.BAE
2.ZAE
No picture
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
3.ZAE2
No picture
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase. Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
Pin 5 – +12V
Pin 6 – GND
3.ZAE2
No picture
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase. Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
4.MRSZ
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
5.MRSZ2
Pin 5 – +12V
Pin 6 – GND
5.MRSZ2
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
6.MRSZ3 – Temic
On Board only! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
7.MRSZ3 – Bosch
Pin 5 – +12V
Pin 6 – GND
6.MRSZ3 – Temic
On Board only! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
7.MRSZ3 – Bosch
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
8.MRSZ4 – Temic
Pin 5 – +12V
Pin 6 – GND
8.MRSZ4 – Temic
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
9.MRSZ4 – Bosch
Pin 5 – +12V
Pin 6 – GND
9.MRSZ4 – Bosch
No need to remove from car! EEPROM read/write, Crash Data clear, Error Memory read/erase.
Pin 9 – K line
Pin 5 – +12V
Pin 6 – GND
Ancel OBD2 Scanner
Using these pictures you can erase airbag “on the table” – you must connect GND, +12V, and Diagnostic line between airbag sensor and BMW Airbag Eraser, connect power supply to GND and +12V and use Eraser like in the car. After erasing don’t connect power supply again – BMW airbag sensor is very sensitive and can write “controller malfunction” error after connection on the table without car. OBDII – BMW 20 pin connection diagram (or you can user any OBDII to BMW converter):
Pin 5 – +12V
Pin 6 – GND
Ancel OBD2 Scanner
Using these pictures you can erase airbag “on the table” – you must connect GND, +12V, and Diagnostic line between airbag sensor and BMW Airbag Eraser, connect power supply to GND and +12V and use Eraser like in the car. After erasing don’t connect power supply again – BMW airbag sensor is very sensitive and can write “controller malfunction” error after connection on the table without car. OBDII – BMW 20 pin connection diagram (or you can user any OBDII to BMW converter):
BMW OBDII connector
| BMW OBDII Connector | BMW 20 pins Connector |
| 7 | 20(Diagnostic) |
| 8 | 20(Diagnostic) |
| 16 | 14(+12V) |
| 4 | 19(GND) |
| 5 | 19(GND) |
