Fault Code 0930

Fault code 0930

Rear left door lock (checkback)

NOTE: This fault was detected by the 'rear left door' control unit

Diagnostic conditions
- Ignition on
- Battery voltage Ok (11.4 to 14.5 V)
- Internal function test on rear left door control unit
- Rear left door lock 'Unlock'
- Rear left door lock 'Lock'
- Rear left door lock 'Secure'

Possible causes of fault
- Rear left door lock could not be changed to required state
- Rear left door lock faulty
- Open circuit

Affected pins
Rear left door control unit: Plug C
- Pin 3 'central locking, safe status'

Diagnosis/troubleshooting

NOTE:
Visual inspection: In the next troubleshooting section, please check first that the affected pins on the rear left door control unit plug connection are neither damaged nor corroded. The wiring and plugs of the affected components must also be checked for external damage and proper contact Repair damaged or corroded pins it possible, otherwise replace affected pins. Repair or replace damaged wires.

NOTE:
Sporadic faults: In the event of faults that occur sporadically, the wiring positions that are linked to moving parts on and in the vehicle must be checked for each system. Various statuses that can cause faults must be simulated with the help of the wiring diagram.

NOTE:
Battery voltage: A battery voltage of between 11.4 and 14.5 V is required for the following troubleshooting procedure. This must be checked and provided, if necessary. On the vehicle electrical system, the voltage to the fuse (input side) must be guaranteed.

NOTE: This fault is detected if the required target state is not reached within 2 seconds.