Nissan Rogue manuals

Nissan Rogue Service Manual: P0444, P0445 EVAP canister purge volume control solenoid

Nissan Rogue Service Manual / Engine / Engine Control System / DTC/Circuit diagnosis / P0444, P0445 EVAP canister purge volume control solenoid

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P0444 PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit open) An excessively low voltage signal is sent to ECM through the EVAP canister purge volume control solenoid valve.
P0445 PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit shorted) An excessively high voltage signal is sent to ECM through the valve

POSSIBLE CAUSE

DTC P0444

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.CONDITIONING

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.

TESTING CONDITION: Before performing the following procedure, confirm battery voltage is more than 11 V at idle.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Start engine and let it idle for at least 13 seconds.
  2.  Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-316, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY

  1.  Turn ignition switch OFF.
  2.  Disconnect EVAP canister purge volume control solenoid valve harness connector.
  3.  Turn ignition switch ON.
  4.  Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.

Check EVAP canister purge volume control solenoid valve power supply

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

NO >> GO TO 2.

2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect IPDM E/R harness connector.
  3.  Check the continuity between EVAP canister purge volume control solenoid valve harness connector and IPDM E/R harness connector.

Check EVAP canister purge volume control solenoid valve power supply circuit

  1. 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 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect ECM harness connector.
  3.  Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector.

Check EVAP canister purge volume control solenoid valve ground circuit

  1. Also check harness for short to power.

Is the inspection result normal? YES-1 >> With CONSULT: GO TO 4.

YES-2 >> Without CONSULT: GO TO 5.

NO >> Repair or replace error-detected parts.

4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

With CONSULT

  1.  Reconnect all harness connectors disconnected.
  2.  Start engine.
  3.  Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
  4.  Check that engine speed varies according to the valve opening.

Does engine speed vary according to the valve opening? YES >> GO TO 6.

NO >> GO TO 5.

5.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Check the EVAP canister purge volume control solenoid valve. Refer to EC-315, "Component Inspection".

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

NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".

6.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

>> INSPECTION END

Component Inspection

1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

With CONSULT

  1.  Turn ignition switch OFF.
  2.  Reconnect all harness connectors disconnected.
  3.  Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
  4. Turn ignition switch ON.
  5.  Select “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
  6.  Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG VOL C/V” opening and check air passage continuity of EVAP canister purge volume control solenoid valve as per the following conditions.

Check EVAP canister purge volume control solenoid valve

Check EVAP canister purge volume control solenoid valve

Without CONSULT

  1.  Turn ignition switch OFF.
  2.  Disconnect EVAP canister purge volume control solenoid valve harness connector.
  3.  Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
  4.  Check air passage continuity of EVAP canister purge volume control solenoid valve as per the following conditions.

Check EVAP canister purge volume control solenoid valve

Check EVAP canister purge volume control solenoid valve

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".

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