Toyota 4Runner: Remote Up / Down Function does not Operate

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Remote Up / Down Function does not Operate

DESCRIPTION

When the ignition switch is ON and the window lock switch is off, the multiplex network master switch sends remote up/down signals to each power window regulator motor via the LIN communication line.

PROCEDURE

1.	CHECK LIN COMMUNICATION SYSTEM

(a) Check for LIN communication system DTCs related to the power window control system (See page ).

OK:

LIN communication system DTCs are not output.

GO TO LIN COMMUNICATION SYSTEM

2.	CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH)

(a) Turn the window lock switch off and operate the switches on the multiplex network master switch. Check that the remote up/down function operates (See page ).

OK:

Remote up/down function operates.

END

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

Auto Up / Down Function does not Operate

DESCRIPTION If the auto up/down function does not operate, the cause may be one or more of the following: The ECU in the back door power window regulator motor determines that the back ...

Manual Up / Down Function does not Operate on Back Door Only

DESCRIPTION If the back door power window does not operate, the retract switch in the rear wiper motor, the back door power window regulator motor or the wire harness may be abnormal. WIRING DIA ...

Other materials about Toyota 4Runner:

Sliding Roof ECU Power Source Circuit
DESCRIPTION If the sliding function and tilt function do not operate, there may be a malfunction in the sliding roof drive gear sub-assembly power source circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When the sliding roof drive gear ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT Use these procedures to troubleshoot the clock system. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT ...