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Diagnosis Procedure

  1. CHECK FUSE 

    Check for blown fuses.

    FUSE SPECIFICATION

    Power source Fuse No.
    Battery 34
    Ignition switch ACC or ON 19

    Is inspection result normal? 

    YES: GO TO  2.

    NO: Be sure to eliminate cause of malfunction before installing new fuse.

  2. CHECK POWER SUPPLY CIRCUIT 

    Check voltage between camera control unit harness connector and ground.

    TERMINALS REFERENCE

    Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
    Battery power supply B50 32 OFF Battery voltage
    ACC power supply B50 30 ACC Battery voltage

    Is inspection result normal? 

    YES: GO TO  3.

    NO: Check harness between camera control unit and fuse.

  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect camera control unit connector.
    3. Check continuity between camera control unit harness connector and ground.
      TERMINALS REFERENCE

      Signal name Connector No. Terminal No. Ignition switch position Continuity
      Ground B50 31 OFF Existed

    Is inspection result normal? 

    YES: INSPECTION END

    NO: Repair harness or connector.

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