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

1.	CHECK MANUAL UP / DOWN FUNCTION

(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.

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

Toyota Tundra Service Manual > Rear View Monitor System(for Radio And Display Type): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the rear view monitor system. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS NEXT 3. CHECK DTC OF AUDIO AND VISUAL SYSTEM (a) Refer to DTC Check/Clear procedures of the audio and visual system. Click here ...

Toyota Tundra Owners Manual