Nissan Frontier D22. Manual - part 456

DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID 

VALVE

EC-927

[VG33E]

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7. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-696, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

EC-928

[VG33E]

DTC P0447 EVAP CANISTER VENT CONTROL VALVE

DTC P0447 EVAP CANISTER VENT CONTROL VALVE

PFP:14935

Component Description

UBS00DL2

The EVAP canister vent control valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System (Small Leak)” diagnosis.

CONSULT-II Reference Value in Data Monitor Mode

UBS00DL3

Specification data are reference values.

On Board Diagnosis Logic

UBS00DL4

DTC Confirmation Procedure

UBS00DL5

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm battery voltage is more than 11V at idle.

 WITH CONSULT-II

1.

Turn ignition switch ON.

SEF032W

SEF143S

MONITOR ITEM

CONDITION

SPECIFICATION

VENT CONT/V

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Ignition switch: ON

OFF

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0447

EVAP canister vent con-
trol valve circuit open

An improper voltage signal is sent to ECM 
through EVAP canister vent control valve.

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Harness or connectors
(The valve circuit is open or shorted.)

●

EVAP canister vent control valve

DTC P0447 EVAP CANISTER VENT CONTROL VALVE

EC-929

[VG33E]

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2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and wait at least 8 seconds.

4.

If 1st trip DTC is detected, go to 

EC-931, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II”.

SEF058Y

EC-930

[VG33E]

DTC P0447 EVAP CANISTER VENT CONTROL VALVE

Wiring Diagram

UBS00DL6

BBWA1086E