MOD

U111A REAR CAMERA IMAGE SIGNAL CIRCUIT

DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" ITS.

1. CHECK CONTINUITY REAR CAMERA POWER SUPPLY AND GROUND CIRCUIT

1.Turn the ignition switch OFF.
2.Disconnect the ITS control unit connector and rear camera connector.
3.Check for continuity between ITS control unit harness connector and rear camera harness connector.





4.Check for continuity between ITS control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair the harness or connector.

2. CHECK VOLTAGE REAR CAMERA POWER SUPPLY

1.Connect the ITS control unit connector and rear camera connector.
2.Turn the ignition switch ON.
3.Check voltage between ITS control unit harness connector and ground.





Is inspection result normal?
YES- GO TO 3.
NO- Replace ITS control unit. Refer to "Removal and Installation ITS Control Unit" Removal And Installation - ITS Control Unit.

3. CHECK CONTINUITY REAR CAMERA IMAGE SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect the ITS control unit connector and rear camera connector.
3.Check for continuity between ITS control unit harness connector and rear camera harness connector.





4.Check for continuity between ITS control unit harness connector and ground.





Is inspection result normal?
YES- GO TO 4.
NO- Repair harness or connector.

4. CHECK REAR CAMERA IMAGE SIGNAL

1.Connect the ITS control unit connector and rear camera connector.
2.Turn the ignition switch ON.
3.Using an oscilloscope, check voltage between ITS control unit harness connector terminals.





Is inspection result normal?
YES- Replace ITS control unit. Refer to "Removal and Installation ITS Control Unit" Removal And Installation - ITS Control Unit.
NO- Replace rear view camera. Refer to "Removal and Installation" LDW.