POWER MIRROR CONTROL SYSTEM (w/ Memory) > Driving Position Memory Switch Circuit (w/ Memory)

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DESCRIPTION

When the seat memory switch M1 or M2 is pressed, the position control ECU & switch (Seat ECU) transmits a signal of the memorized mirror position to the outer mirror control ECU by way of the power window regulator master switch. Then, the outer mirror control ECU drives the mirror motor.

HINT:
The power mirror control system is a part of the multiplex communication system. This system features shared communication wiring that reduces the wiring complexity of the communication lines. The first step in any repair is to confirm the proper operation of the communication system. Proceed with troubleshooting after the communication has been verified (See the Multiplex Communication System).


WIRING DIAGRAM


B111223E02


INSPECTION PROCEDURE

1.CHECK SEAT MEMORY SWITCH


    B069706E01

  1. Remove the seat memory switch.

  1. Measure the resistance according to the value(s) in the table below when the switch is operated.

    Standard resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    3 - 4
    		"SET" switch ON
    		Below 1 Ω
    1 - 4
    		"1" switch ON
    		Below 1 Ω
    2 - 4
    		"2" switch ON
    		Below 1 Ω



NG
REPLACE SEAT MEMORY SWITCH
OK


2.CHECK WIRE HARNESS (SEAT MEMORY SWITCH - MULTIPLEX NETWORK MASTER SWITCH)


    B069727E02

  1. Disconnect the D16 and P19 switch connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D16-2 (MMRY) - P19-3 (MM)
    		Always
    		Below 1 Ω
    D16-4 (1) - P19-13 (M1)
    		Always
    		Below 1 Ω
    D16-3 (2) - P19-17 (M2)
    		Always
    		Below 1 Ω
    D16-1 (E) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE POSITION CONTROL ECU & SWITCH ASSEMBLY