Checking cable

HINT: The fault could also have been caused by the windshield wipers sticking. 

Check the cable between the central electronic module (CEM) and the windshield wiper motor (6/1). Check for a short-circuit to ground.

Take readings between:

Central electronic module (CEM) terminal #16B and windshield wiper motor (6/1) terminal #3.

Check the cable between the central electronic module (CEM) and the rain sensor (7/149). Check for a short-circuit to ground.

Take readings between:

Central electronic module (CEM) terminal #16B and rain sensor (7/149) terminal #4.

Also check the connectors.

If no other faults are found try a new windshield wiper motor (6/1).

Remedy as necessary.

Other information 

• See Connecting the breakout box
• -2004: Signal specification
• 2005-: Signal specification
• See Wiper mechanism and wiper motor, windshield, replacing

• Continue 

  Refer to Verification