TRANSFER SYSTEM Shift Motor Circuit

WIRING DIAGRAM

A01WPJ4E04
A01WSG1E02

CAUTION / NOTICE / HINT

Note

When the vehicle is stopped, mode switching may be unavailable due to the phase of the transfer assembly powertrain. There is no malfunction if mode switching is available after the vehicle is moved.

PROCEDURE


  1. CONFIRM PROBLEM SYMPTOM


    1. Confirm the problem symptoms.

      Result
      Result Proceed to
      The 4LO indicator light continues to blink after operation of the transfer position switch (integration control and panel assembly) A
      The center differential lock indicator light continues to blink after operation of the center differential lock switch (integration control and panel assembly) B

      • Blinking: Blinks at 0.5 second intervals (0.5 seconds on and 0.5 seconds off)


    B

    INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (CENTER DIFFERENTIAL LOCK SHIFT MOTOR) Click here

    A

  2. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (HIGH-LOW TRANSFER SHIFT MOTOR)

    A01WRMBE05
    Text in Illustration
    *a

    Component without harness connected

    (Transfer Shift Actuator Assembly)
    *b High-low Transfer Actuator Side

    1. Disconnect the C44 transfer shift actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (HM1) - 2 (HM2) Always 1.5 to 100 Ω

    NG

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the A28 4 wheel drive control ECU connector.

    2. Disconnect the C44 transfer shift actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A28-2 (HM1) - C44-1 (HM1) Always Below 1 Ω
      A28-6 (HM2) - C44-2 (HM2) Always Below 1 Ω
      A28-2 (HM1) or C44-1 (HM1) - A28-6 (HM2) or C44-2 (HM2) Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the A27 4 wheel drive control ECU connector.

    2. Disconnect the C44 transfer shift actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A27-8 (HL1) - C44-4 (HL1) Always Below 1 Ω
      A27-7 (HL2) - C44-6 (HL2) Always Below 1 Ω
      A27-6 (HL3) - C44-5 (HL3) Always Below 1 Ω
      C44-7 (GND) - Body ground Always Below 1 Ω
      A27-8 (HL1) or C44-4 (HL1) - Body ground Always 10 kΩ or higher
      A27-7 (HL2) or C44-6 (HL2) - Body ground Always 10 kΩ or higher
      A27-6 (HL3) or C44-5 (HL3) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (LIMIT SWITCH AND DETECTION SWITCH)


    1. Turn the engine switch off.

    2. Remove the transfer shift actuator assembly Click here.

    3. Check the high-low transfer limit switch of the transfer shift actuator assembly Click here.

      Result
      Result Proceed to
      OK for LHD A
      for RHD B
      NG C

    A

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    B

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    C

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

  6. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (CENTER DIFFERENTIAL LOCK SHIFT MOTOR)

    A01WRRLE03
    Text in Illustration
    *a

    Component without harness connected

    (Transfer Shift Actuator Assembly)
    *b Center Differential Lock Actuator Side

    1. Disconnect the C43 transfer shift actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (TM1) - 2 (TM2) Always 1.5 to 100 Ω

    NG

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the A28 4 wheel drive control ECU connector.

    2. Disconnect the C43 transfer shift actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A28-8 (TM1) - C43-1 (TM1) Always Below 1 Ω
      A28-7 (TM2) - C43-2 (TM2) Always Below 1 Ω
      A28-8 (TM1) or C43-1 (TM1) - A28-7 (TM2) or C43-2 (TM2) Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the A27 4 wheel drive control ECU connector.

    2. Disconnect the C43 transfer shift actuator assembly connector.

    3. Disconnect the A24 skid control ECU (master cylinder solenoid) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A27-10 (TL2) - C43-6 (TL2) Always Below 1 Ω
      A27-9 (TL3) - C43-5 (TL3) Always Below 1 Ω
      A27-1 (P1) - C43-3 (CDL) Always Below 1 Ω
      C43-7 (GND1) - Body ground Always Below 1 Ω
      A27-10 (TL2) or C43-6 (TL2) - Body ground Always 10 kΩ or higher
      A27-9 (TL3) or C43-5 (TL3) - Body ground Always 10 kΩ or higher
      A27-1 (P1) or C43-3 (CDL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (LIMIT SWITCH AND DETECTION SWITCH)


    1. Turn the engine switch off.

    2. Remove the transfer shift actuator assembly Click here.

    3. Check the center differential lock limit switch and center differential lock detection switch of the transfer shift actuator assembly Click here.

      Result
      Result Proceed to
      OK for LHD A
      for RHD B
      NG C

    A

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    B

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    C

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here