Fault Code 0591

Fault Code 0591

Driver's belt buckle switch

Conditions for diagnosis
- Ignition on
- Internal function test on airbag trigger unit

Possible cause of fault
- Short circuit to ground (with respect to wire from pin 71 of airbag triggering unit and driver's belt buckle)
- Open circuit/short circuit to positive (with respect to wire from pin 71 of airbag triggering unit and driver's belt buckle)
- Faulty (driver's belt buckle faulty)
- Airbag triggering unit faulty

Affected pins
- Airbag trigger unit: pin 71
- Driver's belt buckle plug connection: pin 1 and pin 2

Diagnosis/Troubleshooting

NOTE: The specified resistances relate to an ambient temperature of 20°C.