DTC P1443 Vent Control Solenoid Valve Function Problem

DTC DETECTING CONDITION:

Immediately at fault recognition
GENERAL DESCRIPTION < Refer to DTC P1443 VENT CONTROL SOLENOID VALVE FUNCTION PROBLEM , Diagnostic Trouble Code (DTC) Detecting Criteria. >

TROUBLE SYMPTOM:

Improper fuel supply

CAUTION: After repair or replacement of faulty parts, perform Clear Memory Mode < Refer to OPERATION , CLEAR MEMORY MODE > and Inspection Mode < Refer to PROCEDURE , INSPECTION MODE >.

WIRING DIAGRAM:

Fig 1: Evaporative Emission Control System Vent Control - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC CHART

Step	Check	Yes	No
1 CHECK ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Go to step 2.
2 CHECK VENT LINE HOSES. Check the following item. Clogging of vent hoses between canister and drain valve Clogging of vent hose between drain valve and air filter Clogging of drain filter	Is there a fault in vent line?	Repair or replace faulty parts.	Go to step 3.
3 CHECK DRAIN VALVE OPERATION. Turn the ignition switch to OFF. Connect the test mode connector at the lower portion of instrument panel (on the driver's side). Turn the ignition switch to ON. Operate the drain valve. NOTE: Drain valve operation can also be executed using Subaru Select Monitor. Refer to "COMPULSORY VALVE OPERATION CHECK MODE " for procedures.	Does the drain valve operate?	Contact with SOA Service Center.	Replace the drain valve. < Refer to DRAIN VALVE . >