Part 2
Test tool No. 9516/4 in the place of the seat belt tensioner
NOTE: If the fault memory is cleared, the ignition must be switched off, the ignition key removed and the ignition switched on again in order to
check the fault path. Only in this way is another self-test carried out.
System B 05 - W/Side Air Bags
Fault codes 8, 9, 24, 25, 38
Passenger'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 passenger's seat belt tensioner and the airbag triggering unit
- Passenger's seat belt tensioner faulty
- Triggering unit for airbag faulty
NOTE: The contacts in the seat belt tensioner are very sensitive. When connecting the adapter cable No. 9516/3, ensure that both special tool
contacts are connected parallel and simultaneously.
Affected terminals
Terminals 3 and 4 in left-hand drive vehicles
Terminals 1 and 2 in right-hand drive vehicles
Diagnosis/Troubleshooting