Nissan Juke Service and Repair Manual : P0403 EGR volume control valve

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

1.CHECK EGR VOLUME CONTROL VALVE CONTROL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect EGR volume control valve harness connector and ECM harness connector.

3. Check the continuity between EGR volume control valve terminal harness connector and ECM harness connector

4. Also check harness for short to ground and short to power.


4. Also check harness for short to ground and short to power.

OK or NG OK >> GO TO 2.

NG >> Repair open circuit or short to ground or short to power in harness or connectors.

2.CHECK EGR VOLUME CONTROL VALVE

Refer to EC-941, "Component Inspection".

OK or NG OK >> GO TO 3.

NG >> Replace EGR volume control valve.

3.CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

Refer to EC-941, "Component Inspection".

OK or NG OK >> GO TO 4.

NG >> Replace EGR volume control valve.

4.CHECK EGR PASSAGE

Check the following for clogging and cracks.

EGR tube
EGR hose
EGR cooler

OK or NG OK >> GO TO 5.

NG >> Repair or replace EGR passage.

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> INSPECTION END

Component Inspection

EGR VOLUME CONTROL VALVE

1. Disconnect EGR volume control valve harness connector.

2. Check resistance EGR volume control valve harness connector.

If NG, replace EGR volume control valve. Refer to EC-881, "Work Procedure".


If NG, replace EGR volume control valve. Refer to EC-881, "Work Procedure".

EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

1. Disconnect EGR volume control valve harness connector.

2. Check continuity EGR volume control valve harness connector.

If NG, replace EGR volume control valve. Refer to EC-881, "Work Procedure".


If NG, replace EGR volume control valve. Refer to EC-881, "Work Procedure".

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