AUTOMATIC TRANSMISSION SYSTEM(for 2TR-FE) L4 Position Switch Circuit

DESCRIPTION

The 4 wheel drive control ECU judges whether the transfer is in the L4 position based on the information from the limit switch inside the transfer shift actuator assembly which is detected by the ECM.

The 4 wheel drive control ECU then inputs a signal to the combination meter assembly via CAN communication and turns on the 4LO indicator.

WIRING DIAGRAM

Refer to DTC P2773 Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - BODY GROUND)


    1. B001HWEE09
      Text in Illustration
      *a

      Front view of wire harness connector

      (to 4 Wheel Drive Control ECU)

      Disconnect the G53 4 wheel drive control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G53-16 (L4) - Body ground Always 10 kΩ or higher

    OK
    NG
  2. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - ECM)


    1. B001DN5E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to ECM)

      Disconnect the G53 4 wheel drive control ECU connector.

    2. Disconnect the G180 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G180-25 (L4) - Body ground Always 10 kΩ or higher

    OK
    NG