Fault Code 0408

Fault code 0408

Hall-effect sensor motor (adjustment sun blind)

Diagnostic conditions
- Ignition on
- Panorama roof system (PDS) control unit, internal function test

Possible cause of fault
- Implausible signal
- Motor wiring, hall-effect sensor faulty (B+, ground, Hall signal 1 and 2)
- Motor (sun blind) faulty
- Panorama roof system (PDS) control unit faulty

Affected pins
Panorama roof system (PDS) control unit plug D 'control switches and sun blind':
Pin 10 'GND'
Pin 12 'Hall sender +'

Diagnosis/troubleshooting

NOTE:
- An additional connector is present to connect to the control unit for the motor (adjustment sun blind). The 6-pin connector is located underneath the front roof lining.
- After this fault, or after the battery voltage has been interrupted, or repair or replacement of components of the Panorama roof system has been performed, the limit positions must be relearned for the Panorama roof system control unit.