AUTOMATIC TRANSMISSION SYSTEM > L4 Position Switch Circuit

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DESCRIPTION

The No. 1 transfer indicator switch (L4 position switch) detects the gear position of the transfer shift lever.
Moving the transfer shift lever to L4 turns the L4 position switch ON. Then the ECM cancels operation of the lock-up clutch.

WIRING DIAGRAM


C175018E04


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (NO. 1 TRANSFER INDICATOR SWITCH - BODY GROUND)


    C155110E04

  1. Disconnect the T4 switch connector.

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    T4-2 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


2.INSPECT NO. 1 TRANSFER INDICATOR SWITCH (L4 POSITION SWITCH)
A110992E11

  1. Remove the transfer indicator switch.

  1. Measure the resistance of the switch when pushing the ball at the tip of the switch.

    Standard resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - 2
    		Not pushed
    		10 kΩ or higher
    1 - 2
    		Pushed
    		Below 1 Ω


NG
REPLACE NO. 1 TRANSFER INDICATOR SWITCH
OK


3.CHECK WIRE HARNESS (NO. 1 TRANSFER INDICATOR SWITCH - ECM)
C175020E02

  1. Disconnect the T4 switch connector.

  1. Disconnect the E9 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E9-11 (L4) - T4-1
    		Always
    		Below 1 Ω
    E9-11 (L4) or T4-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE ECM