Nissan Juke Service and Repair Manual : P0488 EGR system

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-954, "Component Inspection".

OK or NG OK >> GO TO 3.

NG >> Replace EGR volume control valve. Refer to EC-881, "Work Procedure".

3.CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR

Refer to EC-954, "Component Inspection".

OK or NG OK >> GO TO 4.

NG >> Replace EGR volume control valve. Refer to EC-881, "Work Procedure".

4.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".

    P0487 EGR volume control valve
    DTC Logic DTC DETECTION LOGIC 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 ...

    P0504 ASCD brake SWI
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF and wait at least 20 seconds. 2. Check ground connection E38. Refer to Ground inspection ...

    Other materials:

    Fuel pressure control
    Fuel pressure control : System Diagram Fuel pressure controlL : System Description INPUT/OUTPUT SIGNAL CHART *: ECM determines the start signal status by the engine speed signal and battery voltage. CVT models System Description Low fuel pressure control • The low fuel pressure pump i ...

    Radiator : Inspection
    Check radiator for mud or clogging. If necessary, clean radiator as follows. CAUTION: • Be careful not to bend or damage radiator fins. • When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan assembly and horns. Then tape harness and harness conn ...

    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 out of gas. DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been p ...