Nissan Juke Service and Repair Manual : P0001 fuel pump

DTC Logic

DTC DETECTION LOGIC

NOTE:


NOTE

:
If DTC P0001 is displayed with DTC P0560 or P0657, first perform trouble diagnosis for DTC P0560 or P0657.

Refer to EC-963, "DTC Logic" (DTC P0560) or EC-976, "DTC Logic" (DTC P0657).

Diagnosis Procedure

1.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect high pressure supply pump (volumetric control valve) harness connector.

3. Turn ignition switch ON.

4. Check the voltage between high pressure supply pump (volumetric control 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.

• Harness or connectors E8, F1 • Harness for open or short between IPDM E/R and high pressure supply pump (volumetric control valve)

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

3.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between high pressure supply pump (volumetric control 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 HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Refer to EC-889, "Component Inspection".

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

NO >> Replace high pressure supply pump.

5.CHECK FUEL LINE

Check fuel line cleanliness.

Is the inspection result normal? YES >> GO TO 6.

NO >> Fuel line cleanliness.

6.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.

>> INSPECTION END

Component Inspection

1.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

1. Turn ignition switch OFF.

2. Disconnect high pressure supply pump (volumetric control valve) harness connector.

3. Check resistance between high pressure supply pump (volumetric control valve) terminals as follows.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace high pressure supply pump.

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