Nissan Rogue (T33) 2021-Present Service Manual: P0408 Egr Differential Pressure Sensor

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P0408 Egr Differential Pressure Sensor

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P0408 00

EGR SENSOR B

(EGR sensor B circuit high) 		Diagnosis condition Ignition switch ON
Signal EGR differential pressure sensor signal
Threshold An excessively high differential pressure from the sensor is sent to ECM
Diagnosis delay time 5 seconds

POSSIBLE CAUSE

  • Harness or connectors (EGR differential pressure sensor circuit is open or shorted.)

  • EGR differential pressure sensor

FAIL-SAFE

Fail safe mode Nissan Ariya Vehicle behavior
Device fix mode

  • This mode fixes the electric IVT control actuator and the EVT control solenoid valve in the reference position.

  • A control signals is not transmitted to the EGR volume control valve and the EGR volume control is deactivated.

DTC CONFIRMATION PROCEDURE

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.

TEST CONDITION:

Before performing the following procedure, confirm that battery voltage is 11 V or more at ignition switch ON.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON and wait at least 5 seconds.

  2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK EGR DIFFERENTIAL PRESSURE SENSOR POWER SUPPLY

  1. Turn ignition switch OFF.

  2. Disconnect EGR differential pressure sensor harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between EGR differential pressure sensor harness connector and ground.

    + −

    Voltage

    (Approx.)
    EGR differential pressure sensor
    Connector Terminal
    F89 3 Ground 5 V

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

GO TO 5.

CHECK EGR DIFFERENTIAL PRESSURE SENSOR GROUND CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between EGR differential pressure sensor harness connector and ECM harness connector.

    + − Continuity
    EGR differential pressure sensor ECM
    Connector Terminal Connector Terminal
    F89 1 F71 106 Existed

  4. Also check harness for short to power.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

CHECK EGR DIFFERENTIAL PRESSURE SENSOR INPUT SIGNAL CIRCUIT

  1. Check the continuity between EGR differential pressure sensor harness connector and ECM harness connector.

    + − Continuity
    EGR differential pressure sensor ECM
    Connector Terminal Connector Terminal
    F89 2 F71 93 Existed

  2. 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.

CHECK EGR DIFFERENTIAL PRESSURE SENSOR

Check the EGR differential pressure sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace EGR differential pressure sensor.

CHECK EGR DIFFERENTIAL PRESSURE SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between EGR differential pressure sensor harness connector and ECM harness connector.

    + − Continuity
    EGR differential pressure sensor ECM
    Connector Terminal Connector Terminal
    F89 3 F71 80 Existed

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

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for power supply circuit.

NO>>

Repair or replace error-detected parts.

    P0407 Egr Differential Pressure Sensor
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0407 00 EGR SENSOR B (EGR sensor B circuit low) Diagnosis condi...
    P040b Egr Temperature Sensor
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P040B 00 EGR TEMP SENSOR A (EGR temperature sensor A circuit ran...

    Other materials:

    System Description. Diagnosis System (occupant Detection System Control Unit)
    CONSULT Function APPLICATION ITEMCONSULT performs the following functions. Diagnosis mode CGW Status Description Restricted Mode Diag Test Mode Open Mode CGW Information Display Display Display Display the current CGW mode Enables CGW to switch mode Data mo ...

    Dtc/circuit Diagnosis. B0010-11 Assist A/b Module
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition B0010-11 ASSIST A/B MODULE (Passenger Frontal Stage 1 Deployment Control) Diagnosis condition When ignition switch is ON. Signal (terminal) Passenger air ba ...

    U2a8c-88 Ethernet Circuit
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detected condition U2A8C-88 Ethernet circuit Diagnosis condition When ignition switch is ON. Signal (terminal) — Threshold Lost ethernet communication with AV control unit Diagnosis delay time ...