Work Instruction 4 - 5
Airbag Diagnosis System B05
Fault Codes 6, 7, 22, 23. 37
Driver's seat belt tensioner
Diagnostic conditions
- Ignition on
Possible cause of fault
- Incorrect coding
- Short circuit to B+/ground or open circuit in the wiring between the driver's seat belt tensioner and the control unit
- Driver's seat belt tensioner faulty
- Triggering unit for airbag faulty
NOTE:
- The contacts in the connector of the seat belt tensioner are very sensitive.
- When connecting the test tool No, 9516/4, ensure that both special tool contacts are inserted parallel and simultaneously.
- After insertion the plug must be locked to make the electrical connection.
Affected terminals
Terminals 1 and 2 in left-hand drive vehicles
Terminals 3 and 4 in right-hand drive vehicles
Diagnosis/troubleshooting
Part 1
Part 2
Test tool No. 9516/4 in the place of the seat belt tensioner