CAMERA CONTROL UNIT : Diagnosis Procedure
- CHECK FUSE
Check for blown fuses.
BLOWN FUSE LISTPower 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.
- CHECK POWER SUPPLY CIRCUIT
Check voltage between camera control unit harness connector and ground.
VOLTAGE REFERENCE CHARTSignal name Connector No. Terminal No. Ignition switch position Voltage (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.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect camera control unit connector.
- Check continuity between camera control unit harness connector and ground.CONTINUITY REFERENCE CHART
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.