Nissan Sentra B18 (2020-2025) Service Manual: P0444 Evap Canister Purge Volume Control Solenoid Valve
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
|
|
P0444 |
PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit open) |
Diagnosis condition |
Engine running at idle |
|
Signal (terminal) |
EVAP canister purge volume control solenoid valve signal |
||
|
Threshold |
An excessively low voltage signal is sent to ECM through the EVAP canister purge volume control solenoid valve |
||
|
Diagnosis delay time |
— |
||
POSSIBLE CAUSE
-
Harness or connectors (EVAP canister purge volume control solenoid valve circuit is open or shorted.)
-
EVAP canister purge volume control solenoid valve
FAIL-SAFE
Not applicable
Confirmation Procedure
Confirmation Procedure
-
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
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.
-
-
PERFORM DTC CONFIRMATION PROCEDURE
-
Start the engine and let it idle for at least 13 seconds.
-
Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>Refer 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
DTC Diagnosis Procedure
-
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY
-
Turn ignition switch OFF.
-
Disconnect EVAP canister purge volume control solenoid valve harness connector.
-
Turn ignition switch ON.
-
Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.
+
−
Voltage
EVAP canister purge volume control solenoid valve
Connector
Terminal
F13
1
Ground
Battery voltage
Is the inspection result normal?
YES >>GO TO 3.
NO >>GO TO 2.
-
-
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect IPDM E/R harness connector.
-
Check the continuity between EVAP canister purge volume control solenoid valve harness connector and IPDM E/R harness connector.
EVAP canister purge volume control solenoid valve
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F13
1
F96
73
Existed
-
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 malfunctioning part.
-
-
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE INPUT SIGNAL CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector.
EVAP canister purge volume control solenoid valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F13
2
F25
122
Existed
-
Also check harness for short to ground.
Is the inspection result normal?
YES-1 >>With CONSULT: GO TO 4.
YES-2 >>Without CONSULT: GO TO 5.
NO >>Repair or replace malfunctioning part.
-
-
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-
Reconnect all harness connectors disconnected.
-
Start engine.
-
Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
-
Check that engine speed varies according to the valve opening.
Is the inspection result normal?
YES >>Refer to Component Inspection.
NO >>GO TO 5.
-
-
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Check the EVAP canister purge volume control solenoid valve. Refer to Component Inspection.
Is the inspection result normal?
YES >>INSPECTION END
NO >>Replace EVAP canister purge volume control solenoid valve. Refer to Exploded View.
Other materials:
Recommended fluids/lubricants and capacities
The following values represent approximate capacities for the Nissan
Sentra. Actual refill quantities may vary slightly depending on engine condition
and service method. When refilling any fluid, always follow the procedures described
in the "Do-it-yourself" section of this manual to ...
Side Radar Left (side Radar Lh)
C1e00-44 Control Unit
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis
content)
DTC detecti ...
Ecu Diagnosis Information. Av Control Unit
Av Control Unit
List of Ecu Reference
List of ECU Reference
ECU
Reference
AV control unit
Values on the Diagnosis Tool
...