Level Control

Fault Code 0668

Vehicle voltage, terminal 30

Diagnostic conditions

- Ignition on
- Internal level control module function test

Possible cause of fault

- Short circuit to ground or open circuit in pin 4 and/or pin 5 of the level control module wiring
- Fuse F27 (15A) in fuse carrier at right of dashboard faulty
- Level control module faulty

Affected pins

Level control module, plug A:
- Pin 4
- Pin 5

Fuse in fuse carrier at right of dashboard: 'F27' (15A)

Diagnosis/troubleshooting