TRANSFER SYSTEM, Diagnostic DTC:P17A9

DTC Code DTC Name
P17A9 Transfer Shift Motor Control Circuit Low

DESCRIPTION

This DTC is output when a short to ground in the high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* drive circuit is detected.


DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P17A9

  1. While the ignition switch is turned to ON or directly after the ignition switch is turned to ON (high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* not operating)

  2. Short to ground in the high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* drive circuit

  3. 0.5 seconds or more (if directly after ignition switch is turned ON, 0.05 seconds or more)

  4. 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer shift actuator assembly

  • Differential lock shift actuator*

WIRING DIAGRAM

B001HJJE02

PROCEDURE


  1. CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR OR LOCK SHIFT MOTOR)


    1. Disconnect the G54 4 wheel drive control ECU connector.

    2. B001G93E03
      Text in Illustration
      *A w/ Rear Differential Lock
      *a

      Front view of wire harness connector

      (to 4 Wheel Drive Control ECU)

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

      Standard Resistance
      Transfer Shift Actuator Assembly (High-low Transfer Shift Motor) Side
      Tester Connection Condition Specified Condition
      G54-2 (HM1) or G54-6 (HM2) - Body ground Always 10 kΩ or higher
      Transfer Shift Actuator Assembly (Center Differential Lock Shift Motor) Side
      Tester Connection Condition Specified Condition
      G54-8 (TM1) or G54-7 (TM2) - Body ground Always 10 kΩ or higher
      Differential Lock Shift Actuator (Differential Lock Shift Motor) Side (w/ Rear Differential Lock)
      Tester Connection Condition Specified Condition
      G54-3 (M1) or G54-9 (M2) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (transfer shift actuator assembly (high-low transfer shift motor) side) B
      NG (transfer shift actuator assembly (center differential lock shift motor) side) C
      NG (differential lock shift actuator (differential lock shift motor) side (w/ Rear Differential Lock)) D

    A

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    C

    CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND) Click here

    D

    CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL LOCK SHIFT ACTUATOR - BODY GROUND) Click here

    B

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


    1. Disconnect the G54 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
      G54-2 (HM1) or C43-8 (HM1) - Body ground Always 10 kΩ or higher
      G54-6 (HM2) or C43-7 (HM2) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. Disconnect the G54 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
      G54-8 (TM1) or C43-2 (TM1) - Body ground Always 10 kΩ or higher
      G54-7 (TM2) or C43-1 (TM2) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL LOCK SHIFT ACTUATOR - BODY GROUND)


    1. Disconnect the G54 4 wheel drive control ECU connector.

    2. Disconnect the E1 differential lock shift actuator connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G54-3 (M1) or E1-3 (M1) - Body ground Always 10 kΩ or higher
      G54-9 (M2) or E1-2 (M2) - Body ground Always 10 kΩ or higher

    OK

    REPLACE DIFFERENTIAL LOCK SHIFT ACTUATOR Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR