Nissan Juke Service and Repair Manual : P0090 fuel pump

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

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

1. Turn ignition switch OFF.

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

3. Turn ignition switch ON.

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

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

3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE 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 (pressure 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.HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) CHECK

Refer to EC-900, "Component Inspection".

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

No >> Replace high pressure supply pump.

5.CHECK INTERMITTENT INCIDENT

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

>> INSPECTIO END

Component Inspection

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

1. Turn ignition switch OFF.

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

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

the inspection result normal?


the inspection result normal? YES >> INSPECTION END

NO >> Replace high pressure supply pump.

    P0089 fuel pump
    DTC Logic DTC DETECTION LOGIC NOTE: • Conditions for applying the diagnostic procedure to the stored DTCs: The DTC becomes present during the first 30 seconds after the engine starts. • In low ...

    P0100 MAF sensor
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit In ...

    Other materials:

    P1225 TP sensor
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test. TESTING CONDITION: Before performing the following proced ...

    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
    The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. Information necessary to service the system safely is include ...

    Headlights
    Fog may temporarily form inside the lens of the exterior lights in the rain or in a car wash. A temperature difference between the inside and the outside of the lens causes the fog. This is not a malfunction. If large drops of water collect inside the lens, contact a NISSAN dealer. Replacing ...