Fault Code 31

Fault Code 31

Ignition circuit, passenger's side airbag

Diagnostic conditions
- Ignition on

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

Affected pins
Pins 18 and 19

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 cable 9516/2 instead of the side airbag

Dianosis/troubleshooting (Part 2):