Diesel Data: Automotive Repair

Auto Up/Down Function Does Not Operate

AUTO UP/DOWN FUNCTION DOES NOT OPERATE

CIRCUIT DESCRIPTION

If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following:
- The recorded power window fully closed position, which is stored in the power window regulator master switch assembly, was erased as a result of: 1) the PWR fuse or the power window relay (PWR) being replaced; or 2) the battery cable and the master switch connector being disconnected.
- The master switch has a malfunction.
- The pulse sensors in the driver side power window regulator motor have a malfunction.
- The wiring between the master switch and the driver side power window regulator motor is open or short circuited.

Wiring Diagram:






Step 1:




Step 2 - 3:




Step 4:




INSPECTION PROCEDURE