Automatic Transmission System (For 1Kd-Ftv) L4 Position Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (FOUR WHEEL DRIVE CONTROL ECU - BODY GROUND)

CHECK HARNESS AND CONNECTOR (FOUR WHEEL DRIVE CONTROL ECU - TCM)

AUTOMATIC TRANSMISSION SYSTEM (for 1KD-FTV) - L4 Position Switch Circuit


DESCRIPTION

The four wheel drive control ECU judges whether the transfer is in L4 based on the information from the limit switch inside the transfer shift actuator assembly which is detected by the TCM.
The four wheel drive control ECU inputs a signal to the combination meter assembly via CAN communication and turns on the 4LO indicator when the transfer is in L4.

WIRING DIAGRAM

Refer to DTC P2772 (LandCruiser RM000002IR004LX_06.html).

INSPECTION PROCEDURE

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


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.A750F Automatic Transmission Transaxle.Automatic Transmission System (For 1Kd-Ftv).Automatic Transmission System (For 1Kd-Ftv)  L4 Position Switch Circuit
  1. Disconnect the G53 four wheel drive control ECU connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    G53-21 (L4) - Body ground
    Always
    10 kΩ or higher
    Text in Illustration
    *a
    Front view of wire harness connector
    (to Four Wheel Drive Control ECU)


NG
Go to step 2
OK

GO TO TRANSFER SYSTEM (LandCruiser RM0000030AB01GX.html)

2.CHECK HARNESS AND CONNECTOR (FOUR WHEEL DRIVE CONTROL ECU - TCM)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.A750F Automatic Transmission Transaxle.Automatic Transmission System (For 1Kd-Ftv).Automatic Transmission System (For 1Kd-Ftv)  L4 Position Switch Circuit
  1. Disconnect the G71 TCM connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    G71-15 (L4) - Body ground
    Always
    10 kΩ or higher
    Text in Illustration
    *a
    Rear view of wire harness connector
    (to TCM)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TCM (LandCruiser RM0000048F300JX.html)