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On Board Diagnosis Logic
NHEC0322
Malfunction is detected when the canister purge flow is detected
during the specified driving conditions, even when EVAP canister
purge volume control solenoid valve is completely closed.
Possible Cause
NHEC0588
I EVAP control system pressure sensor
I EVAP canister purge volume control solenoid valve (The valve
is stuck open.)
I EVAP canister vent control valve
I EVAP canister
I Hoses
(Hoses are connected incorrectly or clogged.)
DTC Confirmation Procedure
NHEC0323
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.
TESTING CONDITION:
Always perform test at a temperature of 5°C (41°F) or more.
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
On Board Diagnosis Logic
EC-534
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