Possible causes, elimination, notes

This fault is stored in the following cases:

1. There is a short circuit in the wire to the pot. left rearview mirror. 
2. The potentiometer is faulty.
3. The control module is faulty.

Elimination: 

• Replace support with gear unit.
• Actuate switch for memory seat adjustment.

The text in the fault memory changes from present  to not present  if the cause of the fault has really been eliminated.

• If the fault is no longer present  , erase the fault memory.
• If the fault is still present  , there is a fault in the wire.

For a fault in the wire, proceed as described below:

• Disconnect plug at support with gear unit. 
• Disconnect mirror  plug from the control module.
• Use an ohmmeter to check for continuity on the support plug  Pin 1 and Pin 7.
• Use an ohmmeter to check for open circuit on the support plug  Pin 3 and the mirror plug on the control module Pin 5 Ohmmeter display < 5ohm
• If no fault is detected in the wire but the fault is still present  , replace the control module.