Circuit Description

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

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 POWER fuse or the power window relay (PWR) being replaced; or 2) the battery cable and the master switch assembly's switch connector being disconnected.
The master switch assembly has a malfunction.
The pulse sensors in the driver side power window regulator motor have a malfunction.
The wiring between the master switch assembly and the driver side power window regulator motor is open or short circuited.