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

DTC No. Detection Item DTC Detection Condition Trouble Area
P17AA Transfer Shift Motor Control Circuit High

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

  • Malfunction Status: Short to B+ 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

Refer to DTC P17A9.

Click here

PROCEDURE


  1. CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR AND 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 voltage according to the value(s) in the table below.

      Standard Voltage
      Transfer shift actuator assembly side:
      Tester Connection Condition Specified Condition
      C61-8 (TM1) or C61-7 (TM2) - Body ground Ignition switch ON Below 1 V
      A.D.D. actuator (differential motor actuator assembly) side:
      Tester Connection Condition Specified Condition
      C61-2 (DM1) or C61-6 (DM2) - Body ground Ignition switch ON Below 1 V
      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 voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C61-8 (TM1) or C74-2 (TM1) - Body ground Ignition switch ON Below 1 V
      C61-7 (TM2) or C74-1 (TM2) - Body ground Ignition switch ON Below 1 V
      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 voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C61-2 (DM1) or C57-1 (DM1) - Body ground Ignition switch ON Below 1 V
      C61-6 (DM2) or C57-2 (DM2) - Body ground Ignition switch ON Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE DIFFERENTIAL MOTOR ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR