MOD

U1310 PUMP UNIT CIRCUIT

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON.
2.Perform "All DTC Reading" with CONSULT.
3.Check if the "U1310" is detected as the current malfunction in "Self Diagnostic Result" of "AVM".
Is "U1310" detected as the current malfunction?
YES- Refer to "Diagnosis Procedure" .
NO- Inspection End.


Diagnosis Procedure

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

1. CHECK REAR VIEW CAMERA AIR PUMP MOTOR POWER SUPPLY CIRCUIT

1.Disconnect the rear view camera washer control unit connector.
2.Turn the ignition switch ON.
3.Check voltage between rear view camera washer control unit connector and ground.





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

2. CHECK REAR VIEW CAMERA AIR PUMP MOTOR GROUND CIRCUIT

1.Turn the ignition switch OFF.
2.Check for continuity between rear view camera washer control unit connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair the harness or connector.

3. CHECK CONTINUITY ITS CONTROL UNIT TO REAR VIEW CAMERA WASHER CONTROL UNIT

1.Disconnect the ITS control unit connector.
2.Check for continuity between ITS control unit harness connector and rear view camera washer control unit connector.





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





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

4. CHECK CONTINUITY REAR VIEW CAMERA WASHER CONTROL UNIT TO PUMP

1.Disconnect rear view camera air pump connector.
2.Check for continuity between rear view camera washer control unit connector and pump connector.





3.Check for continuity between rear view camera washer control unit connector and ground.





Is inspection result normal?
YES- GO TO 5.
NO- Repair the harness or connector.

5. CHECK REAR VIEW CAMERA AIR PUMP MOTOR ITS CONTROL UNIT SUPPLY CIRCUIT

Momentarily connect a jumper from a fused battery positive to terminal 1 and from ground to terminal 2 of the rear view camera air pump motor.
Does the pump operate?
YES- GO TO 6.
NO- Replace the rear view camera air pump motor.

6. CHECK REAR VIEW CAMERA AIR PUMP MOTOR ITS CONTROL UNIT SUPPLY CIRCUIT

1.Reconnect the ITS control unit connector.
2.Turn the ignition switch ON.
3.Activate the rear view camera air pump while checking voltage between rear view camera washer control unit connector and ground.





Can voltage be measured on either terminal?
YES- Replace rear view camera washer control unit.
NO- Replace the ITS control unit. Refer to "Removal and Installation ITS Control Unit" Removal And Installation - ITS Control Unit.