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P1446 - EVAP Canister Vent Control Valve Close

Possible causes
- Faulty EVAP Pressure Sensor
- EVAP Pressure Sensor harness is open or shorted
- EVAP Pressure Sensor circuit poor electrical connection
- Blocked rubber tube to EVAP canister vent control valve
- EVAP Water separator
- EVAP canister is saturated with water
- Faulty EVAP canister vent control valve
What does this mean? What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1446 Description

The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.

This solenoid valve responds to signals from the Engine Control Module (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 evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.

P1446 Information for specific makes
P1446 AUDI Catalyst Temperature Circuit Short To Ground
P1446 BMW Diagnostic Module Tank Leakage Pump Control Circuit Signal High
P1446 HONDA Battery Module Individual Voltage Input Deviation
P1446 INFINITI EVAP Canister Vent Control Valve Close
P1446 KIA Leak Detection Module Solenoid Valve Circuit Fault
P1446 MINI Diagnostic Module Tank Leakage Pump Control Circuit Signal High
P1446 MINI Diagnostic Module Tank Leakage Pump Control Circuit Signal High
P1446 NISSAN EVAP Canister Vent Control Valve Close  P1446 Video
P1446 SUBARU Fuel Tank Sensor Control Valve Circuit Low
P1446 VOLKSWAGEN Catalyst Temperature Circuit Short To Ground
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