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SEF381Z
SEF267X
Component Description
NFEC1096
The EVAP canister vent control valve is located on the EVAP can-
ister 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 ener-
gized. A plunger will then move to seal the canister vent. The abil-
ity 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
evaporative emission control system is depressurized and allows
“EVAP Control System (Small Leak)” diagnosis.
CONSULT-II Reference Value in Data Monitor
Mode
NFEC1097
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V I Ignition switch: ON OFF
On Board Diagnosis Logic
NFEC1099
DTC No.
Trouble diagnosis
name
DTC Detecting Condition Possible Cause
P1446
1446
EVAP canister vent
control valve closed
EVAP canister vent control valve remains closed
under specified driving conditions.
I EVAP canister vent control valve
I EVAP control system pressure sensor
and the circuit
I Blocked rubber tube to EVAP canister
vent control valve
I Water separator
I EVAP canister is saturated with water.
PBIB0164E
DTC Confirmation Procedure
NFEC1100
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
WITH CONSULT-II
NFEC1100S01
1) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
DTC P1446 EVAP CANISTER VENT CONTROL VALVE
Component Description
EC-586
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