Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSSUBARU2007OUTBACK LIMITED, 4D WAGON, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIA (H4SO)DIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIADTC P1443 VENT CONTROL SOLENOID VALVE FUNCTION PROBLEMENABLE CONDITION

2007 Subaru Outback Limited, 4D Wagon, Automatic

Enable Condition

2007 Subaru Outback Limited, 4D Wagon, AutomaticSECTION Enable Condition

ENABLE CONDITION

Secondary Parameters	Enable Conditions
Drain valve	Open
Battery voltage	≥ 10.9 V
Barometric pressure	≥ 75.0 kPa (563 mmHg, 22.17 inHg)
Tank pressure when starter is OFF → ON	-0.43 - 1.4 kPa (-3.2 - 10.7 mmHg,-0.13 - 0.42 inHg)

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.