Nissan Juke Service and Repair Manual : P0078 EVT control solenoid valve

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO2.

2.PERFORM DTC CONFIRMATION PROCED

1. Start engine and let it idle for 5 seconds.

2. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-179, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect exhaust valve timing (EVT) control solenoid valve harness connector.

3. Turn ignition switch ON.

4. Check the voltage between exhaust valve timing control solenoid valve harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between EVT control solenoid valve harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground.


4. Also check harness for short to ground.

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Repair or replace error-detected parts.

3.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between EVT control solenoid valve harness connector and ECM harness connector.

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


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

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

NO >> Repair or replace error-detected parts.

4.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE

Check the exhaust valve timing control solenoid valve. Refer to EC-177, "Component Inspection".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".

NO >> Replace exhaust valve timing control solenoid valve.

Component Inspection

1.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE-I

1. Turn ignition switch OFF.

2. Disconnect exhaust valve timing control solenoid valve harness connector.

3. Check resistance between exhaust valve timing control solenoid valve terminals as per the following.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 2.

NO >> Replace exhaust valve timing control solenoid valve. Refer to EM-67, "Exploded View".

2.CHECK EXHAUST VALVE TIMING CONTROL SOLENOID VALVE-II

1. Remove exhaust valve timing control solenoid valve. Refer to EM-67, "Exploded View".

2. Provide 12 V DC between exhaust valve timing control solenoid valve terminals 1 and 2, and then interrupt it. Check that the plunger moves as shown in the figure.

CAUTION: Do not apply 12 V DC continuously for 5 seconds or more.

Doing so may result in damage to the coil in exhaust valve timing control solenoid valve.

NOTE: Always replace O-ring when exhaust valve timing control solenoid valve is removed.

Is the inspection result normal? YES >> INSPECTION END NO >> Replace exhaust valve timing control solenoid valve. Refer to EM-67, "Exploded View".

P0087, P0088, P0090 FRP control system


    P0075 IVT control solenoid valve
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conductin ...

    P0087, P0088, P0090 FRP control system
    DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0087 or P0090 is displayed with DTC P1197, first perform the trouble diagnosis for DTC P1197. DTC P0087 or P0090 may be displayed when running ou ...

    Other materials:

    Diagnosis system (BCM) (without intelligent key system)
    Description Air conditioning system performs self-diagnosis, operation check, function diagnosis, and various settings using diagnosis function of each control unit. Common item : consult-III Function (BCM - COMMON ITEM) APPLICATION ITEM CONSULT-III performs the following functions via CAN ...

    Ignition position warning function does not operate
    Diagnosis Procedure 1.CHECK DTC WITH BCM Check that DTC is not detected with BCM. Is the inspection result normal? YES >> GO TO 2. NO >> Refer to BCS-67, "DTC Index". 2.CHECK POWER DOOR LOCK OPERATION Check power door lock operation. Does door lock/unlock with d ...

    Unit removal and installation
    Engine assembly Exploded View 1. Engine mounting assembly (RH) 2. Rear engine mounting bracket 3. Rear torque rod 4. Engine mounting bracket (LH) 5. Stud bolt 6. Engine mounting bracket (LH) 7. Engine mounting insulator (LH) 8. Mass damper : Nm (kg-m, ft-lb) CAUTION: Check that ...