Fault Code 0330

Fault Code 0330

Interval signal for rear window wiper system

NOTE: This fault was detected by the 'rear convenience system' control unit.

Diagnostic conditions

- Ignition on
- Battery voltage OK (11.4 to 14.5 V)
- Internal rear convenience system control unit function test
- Rear window wiper set to intermittent

Possible causes of fault

- Short circuit to B+
- Short circuit to ground
- Open circuit

Affected pins

Rear convenience system control unit: Plug C
- Pin 4 'rear wiping interval'

Diagnosis/troubleshooting

NOTE:
- Visual inspection: In the next troubleshooting section, please check first that the affected pins on the rear convenience system 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 if possible, otherwise replace affected pins. Repair or replace damaged wires.
- 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.
- 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.
- In the rear lid area (left) of the wiring harness there is a 10-pin plug connector and in the right tail light area a further 10-pin plug connector that must be included in the checks.