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DIFFERENTIAL SYSTEM(w/ Differential Lock), Diagnostic DTC:P17CC

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DTC Code DTC Name
P17CC Rear Differential Lock Control SW Stuck ON
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DESCRIPTION

This DTC is output when a malfunction of the differential lock switch is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17CC Rear Differential Lock Control SW Stuck ON

  • Diagnosis Condition: Directly after the ignition switch is turned to ON, or when the ignition switch is ON

  • Malfunction Status: Differential lock switch stuck ON

  • Malfunction Time: 0.3 seconds or more when the ignition switch is turned to ON, or 60 seconds or more with the ignition switch ON

  • Other: 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Differential lock switch
Table 1. *a Differential Lock Switch *b 4 Wheel Drive Control ECU
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WIRING DIAGRAM

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PROCEDURE


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


    1. Disconnect the C39 4 wheel drive control ECU connector.

    2. Disconnect the G137 differential lock switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C39-15 (R) or G137-11 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

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    INSPECT DIFFERENTIAL LOCK SWITCH


    1. Disconnect the G137 differential lock switch connector.

    2. B0028HYC07
      *a

      Component without harness connected

      (Differential Lock Switch)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      11 - 8 Switch not pressed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG