Subaru IMPREZA GD 2007 Series Manual page 373

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DA:DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION
(HIGH INPUT)
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-201, DTC P1493 EGR SOLENOID VALVE SIGNAL #1
CIRCUIT MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC) Detecting Criteria.> <Ref. to
GD(H4SO)-203, DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH IN-
PUT), Diagnostic Trouble Code (DTC) Detecting Criteria.> <Ref. to GD(H4SO)-203, DTC P1497 EGR SO-
LENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC)
Detecting Criteria.> <Ref. to GD(H4SO)-203, DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT
MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Erroneous idling
• Poor driving performance
• Engine breathing
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.>.
EN(H4SO)(diag)-264