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

DTC P0449 DETECTING CONDITION TABLE

Item	Detecting Condition	Possible Cause
DTC Strategy	Ventilation control valve stuck closed	Canister air filter contamination Faulty CCV
Enable Conditions	Leak detection test not active No tank pressure sensor error 11V < Battery voltage < 16V
Threshold Value	Fuel Tank underpressure (below -30 hPa) too high Differential fuel tank pressure V.DTP < 1.6V
Diagnostic Time	10 sec.
MIL On Condition	2 Driving Cycles