P1443

CJ: DTC P1443 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL FUNCTION PROBLEM

DTC DETECTING CONDITION:
- Immediately after fault occurrence

TROUBLE SYMPTOM:
- Improper fuel supply

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes. Clearing Diagnostic Trouble Codes





WIRING DIAGRAM

10CJ1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Is there any other DTC on display?

YES: Inspect the relevant DTC using "10. Diagnostics Chart with Trouble Code".

NO: Go to step 10CJ2.

10CJ2: CHECK VENT LINE HOSES.





Check the following items.
- Clogging of vent hoses between canister and drain valve
- Clogging of vent hose between drain valve and drain filter
- Clogging of vent hose between drain filter and junction pipe
- Clogging of junction pipe
- Clogging of air filter

CHECK: Is there a fault in vent line?

YES: Repair or replace the faulty part.

NO: Go to step 10CJ3.

10CJ3: CHECK DRAIN VALVE OPERATION.
1. Turn ignition switch to OFF.




2. Connect test mode connector at the lower portion of instrument panel (on the driver's side), to the side of the center console box.
3. Turn ignition switch to ON.
4. Operate drain valve.

NOTE: Drain valve operation can also be executed using Subaru Select Monitor. For the procedure Refer to the "COMPULSORY VALVE OPERATION CHECK MODE".

CHECK: Does drain valve produce operating sound?

YES: Contact with Subaru of America (SOA) service.

NOTE: Inspection by Subaru of America's DTM is required, because probable cause is deterioration of multiple parts.

NO: Replace drain valve.