Fault Codes 12, 13, 28, 29, 40

Fault Codes 12, 13, 28, 29, 40

Ignition Circuit, Driver's Side Airbag

Diagnostic conditions
- Ignition on

Possible cause of fault
- Short circuit to B+/ground or open circuit in the wiring between the driver's side airbag unit and the airbag triggering unit
- Driver's side airbag faulty

Affected terminals
Terminals 16 and 17

Diagnosis/Troubleshooting
The following figure illustrates how the plug connection is disconnected from the side airbag.

Work Instruction 1:

Test tool No. 9516 and adapter cable No. 9516/2 instead of the driver's side airbag

Work Instruction 2 - 3: