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 MANUALSSUBARU2005OUTBACK I, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - ENGINE (DIAGNOSTICS) (H4SO)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW INPUT
2005 Subaru Outback i, Standard
DTC P2228 Barometric Pressure Circuit Low Input
2005 Subaru Outback i, StandardSECTION DTC P2228 Barometric Pressure Circuit Low Input
DTC DETECTING CONDITION:
- Detect as soon as malfunction occurs.
- GENERAL DESCRIPTION < Ref. to DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW INPUT , Diagnostic Trouble Code (DTC) Detecting Criteria. >
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to
, OPERATION , Clear Memory Mode.> and Inspection Mode < Ref. to
, PROCEDURE , Inspection Mode.>.
DTC P2228 DIAGNOSIS
| Step | Check | Yes | No |
|---|---|---|---|
| 1. CHECK FOR ANY OTHER DTC ON DISPLAY. | Is any other DTC displayed? | Check DTC using the List of Diagnostic Trouble Code (DTC). < Ref. to
, LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >
NOTE:
It is not necessary to inspect DTC P1110.
|
Replace the ECM. < Ref. to ENGINE CONTROL MODULE (ECM) . > |
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.