ELECTRONIC CONTROLLED 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 TCM cancels operation of the lock-up clutch.

WIRING DIAGRAM


G037771E01


INSPECTION PROCEDURE

1.INSPECT NO. 1 TRANSFER INDICATOR SWITCH (L4 POSITION SWITCH)
A110992E01

  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 (L4 POSITION SWITCH)
OK


2.CHECK WIRE HARNESS (NO. 1 TRANSFER INDICATOR SWITCH - TCM AND BODY GROUND)
G034868E01

  1. Disconnect the T4 indicator switch connector.

  1. Disconnect the T18 TCM connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    T18-15 (L4) - T4-1 (L4)
    		Below 1 Ω
    T4-2 (L4) - Body ground
    		Below 1 Ω
    T18-15 (L4) or T4-1 (L4) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE