Subaru IMPREZA GD 2007 Series Manual page 417

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DQ:DTC P2227 BAROMETRIC PRESSURE CIRCUIT RANGE/PERFORMANCE
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-232, DTC P2227 BAROMETRIC PRESSURE CIRCUIT
RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repairing or replacing the defective parts, perform the Clear Memory Mode <Ref. to
EN(H4SO)(diag)-47, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(di-
ag)-38, PROCEDURE, Inspection Mode.>.
Step
1 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
DR:DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-233, DTC P2228 BAROMETRIC PRESSURE CIRCUIT
LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repairing or replacing the defective parts, perform the Clear Memory Mode <Ref. to
EN(H4SO)(diag)-47, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(di-
ag)-38, PROCEDURE, Inspection Mode.>.
Step
1 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
Check
Check
EN(H4SO)(diag)-308
Yes No
Check DTC using Replace the ECM.
"List of Diagnostic <Ref. to
Trouble Code FU(H4SO)-39,
(DTC)". <Ref. to Engine Control
EN(H4SO)(diag)- Module (ECM).>
72, List of Diagnos-
NOTE:
tic Trouble Code
The barometric
(DTC).>
pressure sensor is
built into the ECM.
Yes No
Check DTC using Replace the ECM.
"List of Diagnostic <Ref. to
Trouble Code FU(H4SO)-39,
(DTC)". <Ref. to Engine Control
EN(H4SO)(diag)- Module (ECM).>
72, List of Diagnos-
NOTE:
tic Trouble Code
The barometric
(DTC).>
pressure sensor is
built into the ECM.