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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BW:DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-
37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30, PROCE-
DURE, Inspection Mode.>.
Step
1
CHECK ANY OTHER DTC ON DISPLAY.
BX:DTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGH
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-
37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30, PROCE-
DURE, Inspection Mode.>.
Step
1
CHECK ANY OTHER DTC ON DISPLAY.
Check
Is DTC P2228 displayed on the
Subaru Select Monitor?
Check
Is DTC P2229 displayed on the
Subaru Select Monitor?
EN(H4DOTC)(diag)-212
Yes
Replace the ECM.
Temporary poor
<Ref. to
contact occurs.
FU(H4DOTC)-34,
Engine Control
Module (ECM).>
NOTE:
Atmospheric pres-
sure sensor is inte-
grated into ECM.
Yes
Replace the ECM.
Temporary poor
<Ref. to
contact occurs.
FU(H4DOTC)-34,
Engine Control
Module (ECM).>
NOTE:
Atmospheric pres-
sure sensor is inte-
grated into ECM.
No
No
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