Operation CHARM: Car repair manuals for everyone.

Fault Code 12



Fault Code 12

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 pins
Pins 16 and 17

Diagnosis/troubleshooting





Dianosis/troubleshooting (Part 1):






The following illustration illustrates how the plug connection is disconnected from the side airbag.

Test tool 9516 and adapter cable9516/2 instead of the driver's side airbag





Dianosis/troubleshooting (Part 2):