Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch: Description

WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. 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 multiplex network master switch, was erased as a result of: 1) a fuse or relay related to the driver side power window being replaced; or 2) the battery cable and the master switch's 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.