TOUCH SELECT 2-4 AND HIGH-LOW 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 transfer shift motor and A.D.D. shift motor drive circuit is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17A9 Transfer Shift Motor Control Circuit Low

  • Diagnosis Condition: Directly after the ignition switch is turned to ON, or while the ignition switch is turned to ON (transfer shift motor not operating)

  • Malfunction Status: Short to ground in the transfer shift motor and A.D.D. shift motor drive circuits

  • Malfunction Time: 0.5 seconds or more (after the ignition switch is turned to ON, 0.05 seconds or more)

  • Other: 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer shift actuator assembly

  • A.D.D. actuator (differential motor actuator assembly)

WIRING DIAGRAM

B003QBME06

PROCEDURE


  1. CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR OR A.D.D. SHIFT MOTOR)


    1. Disconnect the C61 4 wheel drive control ECU connector.

    2. B003R4GC02
      *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 side:
      Tester Connection Condition Specified Condition
      C61-8 (TM1) or C61-7 (TM2) - Body ground Always 10 kΩ or higher
      A.D.D. actuator (differential motor actuator assembly) side:
      Tester Connection Condition Specified Condition
      C61-2 (DM1) or C61-6 (DM2) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (transfer shift actuator assembly side) B
      NG (A.D.D. actuator (differential motor actuator assembly) side) C

    A

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    C

    CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY - 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 C61 4 wheel drive control ECU connector.

    2. Disconnect the C74 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
      C61-8 (TM1) or C74-2 (TM1) - Body ground Always 10 kΩ or higher
      C61-7 (TM2) or C74-1 (TM2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    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 DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY - BODY GROUND)


    1. Disconnect the C61 4 wheel drive control ECU connector.

    2. Disconnect the C57 A.D.D. actuator (differential motor actuator assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C61-2 (DM1) or C57-1 (DM1) - Body ground Always 10 kΩ or higher
      C61-6 (DM2) or C57-2 (DM2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR