TRANSFER SYSTEM, Diagnostic DTC:P17AA

DTC Code DTC Name
P17AA Transfer Shift Motor Control Circuit High

DESCRIPTION

This DTC is output when a short to B+ 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
P17AA

  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 B+ in the high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* drive circuits

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

  4. 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer shift actuator assembly

  • Differential lock shift actuator*

WIRING DIAGRAM

Refer to DTC P17A9 Click here.

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 voltage according to the value(s) in the table below

      Standard Voltage
      Transfer Shift Actuator Assembly (High-low Transfer Shift Motor) Side
      Tester Connection Condition Specified Condition
      G54-2 (HM1) or G54-6 (HM2) - Body ground Ignition switch ON Below 1 V
      Transfer Shift Actuator Assembly (Center Differential Lock Shift Motor) Side
      Tester Connection Condition Specified Condition
      G54-8 (TM1) or G54-7 (TM2) - Body ground Ignition switch ON Below 1 V
      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 Ignition switch ON Below 1 V
      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 voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G54-2 (HM1) or C43-8 (HM1) - Body ground Ignition switch ON Below 1 V
      G54-6 (HM2) or C43-7 (HM2) - Body ground Ignition switch ON Below 1 V

    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 voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G54-8 (TM1) or C43-2 (TM1) - Body ground Ignition switch ON Below 1 V
      G54-7 (TM2) or C43-1 (TM2) - Body ground Ignition switch ON Below 1 V

    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 voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G54-3 (M1) or E1-3 (M1) - Body ground Ignition switch ON Below 1 V
      G54-9 (M2) or E1-2 (M2) - Body ground Ignition switch ON Below 1 V

    OK

    REPLACE DIFFERENTIAL LOCK SHIFT ACTUATOR Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR