Nissan Juke Service and Repair Manual : P1632 fuel cut off valve

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

1.CHECK FUEL CUT OFF VALVE POWER SUPPLY CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect fuel cut off valve harness connector.

3. Turn ignition switch ON.

4. Check the voltage between fuel cut off valve harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.DETECT MALFUNCTIONING PART

Check the following.

Х Harness connectors E8, F1 Х Harness for open or short between IPDM E/R and fuel cut off valve

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

3.CHECK FUEL CUT OFF VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between fuel cut off valve 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.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

4.CHECK FUEL CUT OFF VALVE

Refer to EC-989, "Component Inspection".

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace exhaust fuel injector.

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> INSPECTION END

Component Inspection

1.CHECK FUEL CUT OFF VALVE

1. Turn ignition switch OFF.

2. Disconnect fuel cut off valve harness connector.

3. Check resistance between fuel cut off valve terminals as follows.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace fuel cut off valve.

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