DTC P0449: EVAP. Emission System-Vent Valve / Solenoid Circuit: DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition & Fail Safe	Possible Cause
DTC Strategy	Ventilation control valve stuck closed	Canister Air-Filter contamination Faulty CCV
Enable Conditions	Leak detection test not active No DTP failure already present 11V < Battery voltage < 16V
Threshold Value	Voltage of differential fuel tank pressure < 1.6V
Diagnostic Time	10 sec.
Fall Safe	EVAP. emission control function is disabled EVAP. System monitoring is inhibited Fuel Tank Pressure Sensor monitoring is inhibited