Toyota Tundra Service Manual: Driver Side Power Window Auto Down Function does not Operate

DESCRIPTION

• If the AUTO DOWN function does not operate, the cause may be one or more of the following:

• The master switch has a malfunction.
• The driver side motor has a malfunction.
• The wiring between the master switch and the driver side motor is open or shorted.

WIRING DIAGRAM

PROCEDURE

(a) Check that the manual UP/DOWN function of the master switch can operate the driver door power window.

OK:

Manual UP/DOWN function operates normally.

OK

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

NG

OTHER PROBLEM