The drain valve can be actuated by connecting the green test mode connector under the driver side dash. The valve will continue to be actuated until the green test mode connector is disconnected. The drain valve is incorporated into the evaporative charcoal canister and cannot be replaced individually.
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P1443 Subaru code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
This is a normally open solenoid used to allow fresh air to enter the charcoal canister when purging vapors into the engine. The evaporative vent solenoid (drain valve) can also be closed to allow the evaporative system to run the leak monitor. The Diagnostic Trouble Code (DTC) will set when the Engine Control Module (ECM) detects the drain valve is inoperative/stuck in the closed position.
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