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

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