DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-339
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EC
2005 Pathfinder
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
PFP:14935
Component Description
UBS00K9E
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 diagnosis.
CONSULT-II Reference Value in Data Monitor Mode
UBS00K9F
Specification data are reference values.
On Board Diagnosis Logic
UBS00K9G
PBIB1263E
BBIA0551E
MONITOR ITEM
CONDITION
SPECIFICATION
VENT CONT/V
●
Ignition switch: ON
OFF
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0447
0447
EVAP canister vent con-
trol valve circuit open
An improper voltage signal is sent to ECM
through EVAP canister vent control valve.
●
Harness or connectors
(The valve circuit is open or shorted.)
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EVAP canister vent control valve