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### 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

## INSPECTION PROCEDURE

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

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)

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