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56 Ω Or Less (P-Can)

WARNING: This page is about a different variant/trim than selected.

Wiring diagram: 

CAN communication system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>CAN COMMUNICATION SYSTEM>WIRING DIAGRAM .

G13617061Courtesy of SUBARU OF AMERICA, INC.
NOTE: When the bus line is measured, combined resistance of the end resistance (120 Ω) in ECM and the end resistance (120 Ω) in Body Control Module can be measured. The combined resistance is more than 56 Ω and less than 64 Ω. When the measured resistance value is 56 Ω or less, main wiring harness or related lines may be shorted, or combined resistance may have changed because resistance other than end resistance is created on the circuit.
  1. CHECK BETWEEN RELATED LINES AND MAIN WIRING HARNESS  .
    1. Turn the ignition switch to OFF.
    2. Disconnect the ECM connector.
    3. Using a tester, measure the resistance between ECM connectors.

      Connector & terminal 

      (B134) No. 4 - (B134) No. 15:

    Is the resistance less than 10 Ω?

    Yes  : Go to  2.

    No  : Go to  3.

  2. CHECK MAIN WIRING HARNESS AND RELATED LINES  .

    With a tester connected, disconnect control module connectors in order.

    Connector & terminal 

    (B134) No. 4 - (B134) No. 15:

    Is there any control module whose condition has changed from short state?

    Yes  : Replace the control module whose resistance has changed. Go to  3.

    No  : Repair or replace the short circuit of the harness between ECM and Body Control Module.

  3. CHECK CONTROL MODULE  .
    1. Disconnect the ECM and Body Control Module connectors.
    2. Using a tester, measure the resistance between control module terminals.

      Connector & terminal 

      (B134) No. 4 - (B134) No. 15:

      (HV42) No. 2 - (HV42) No. 3:

    Is the resistance 114 - 126 Ω?

    Yes  : Go to  4.

    No  : Replace the control module whose end resistance value is out of the specified range.

  4. CHECK CONTROL MODULE  .

    With a tester connected, disconnect control modules in order.

    Connector & terminal 

    (B134) No. 4 - (B134) No. 15:

    Are there any control modules whose resistance changed to 1 MΩ or more?

    Yes  : Replace the control module that has changed.

    No  : Repair or replace the harness part which has resistance component.

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