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TRANSFER SYSTEM, Diagnostic DTC:P17C2

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DTC Code DTC Name
P17C2 Rear Differential Lock Shift Motor Circuit Open
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DESCRIPTION

This DTC is output when an open circuit in the 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
P17C2

  1. When rear differential is switching between free and lock (differential lock shift motor operating) with ignition switch turned to ON

  2. Open circuit in the differential lock shift motor drive circuit

  3. 0.03 seconds or more

  4. 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Differential lock shift actuator
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WIRING DIAGRAM

Refer to DTC P17A9 (Click here).

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PROCEDURE


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


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

    2. Disconnect the f1 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
      A28-3 (M1) - f1-3 Always Below 1 Ω
      A28-9 (M2) - f1-2 Always Below 1 Ω

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

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    INSPECT DIFFERENTIAL LOCK SHIFT ACTUATOR (DIFFERENTIAL LOCK SHIFT MOTOR)


    1. B001YJKE01

      Disconnect the f1 differential lock shift actuator connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 2 Always 100 Ω or less
      Table 1. Text in Illustration
      *a

      Component without harness connected

      (Differential Lock Shift Actuator)
      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 DIFFERENTIAL LOCK SHIFT ACTUATOR (Click here)