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SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR): Diagnosis Procedure

  1. CHECK FUSE 

    Check for blown fuses.

    Power source Fuse No.
    Ignition switch ON or START 4

    Is the inspection result normal? 

    YES: GO TO 2.

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

  2. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch ON.
    2. Check voltage between sonar control unit harness connector and ground.
      Sonar control unit Ground Voltage (Approx.)
      Connector Terminal
      M47 13 Battery voltage

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace sonar control unit power supply harness.

  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect sonar control unit connector.
    3. Check continuity between sonar control unit harness connector and ground.
      Sonar control unit Ground Continuity
      Connector Terminal
      M47 24 Existed

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Repair or replace sonar control unit ground harness.

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