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Home >> Mitsubishi >> 2024 >> Outlander PHEV ES >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Body Control System) >> DTC/Circuit Diagnosis >> Combination Switch Output Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2023 Mitsubishi Outlander PHEV. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OUTPUT CIRCUIT 
    1. Electric motor switch ON.
    2. Turn ON any switch in the system that is malfunctioning.
    3. Check duty ratios between BCM harness connector and ground by using an oscilloscope.
    System + - Output waveform
    BCM
    Connector Terminal
    Output 1 M19 48 Ground Refer to REFERENCE VALUE .
    Output 2 49
    Output 3 53
    Output 4 52
    Output 5 50
    Output 6 51

    Is the inspection result normal? 

    YES >>

    Check intermittent incident. Refer to Intermittent Incident INTERMITTENT INCIDENT .

    NO-1 >>

    Fixed to 0 V:

    GO TO  2.

    NO-2 >>

    Fixed to 9 - 16 V: Replace BCM. Refer to REMOVAL AND INSTALLATION .

  2. CHECK OUTPUT CIRCUIT FOR OPEN 
    1. Electric motor switch OFF.
    2. Disconnect BCM connector.
    3. Check continuity between BCM harness connector and combination switch harness connector.
    System BCM Combination switch Continuity
    Connector Terminal Connector Terminal
    Output 1 M19 48 M28 7 Existed
    Output 2 49 15
    Output 3 53 10
    Output 4 52 5
    Output 5 50 2
    Output 6 51 12

    Is the inspection result normal? 

    YES >>

    GO TO  3.

    NO >>

    Repair harnesses or connector.

  3. CHECK OUTPUT CIRCUIT FOR SHORT 

    Check for continuity between BCM harness connector and ground.

    System BCM - Continuity
    Connector Terminal
    Output 1 M19 48 Ground Not existed
    Output 2 49
    Output 3 53
    Output 4 52
    Output 5 50
    Output 6 51

    Is the inspection result normal? 

    YES >>

    Replace combination switch. Refer to REMOVAL AND INSTALLATION .

    NO >>

    Repair harnesses or connector.