Subaru 2009 IMPREZA Service Manual page 898

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CR:DTC P1494 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION
(LOW INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1492. <Ref. to GD(H4SO)-170, DTC P1492 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT), Diagnostic Trouble Code (DTC) Detecting Cri-
teria.>
CS:DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION
(HIGH INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1493. <Ref. to GD(H4SO)-172, DTC P1493 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC) Detecting
Criteria.>
CT:DTC P1496 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION
(LOW INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1492. <Ref. to GD(H4SO)-170, DTC P1492 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT), Diagnostic Trouble Code (DTC) Detecting Cri-
teria.>
CU:DTC P1497 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION
(HIGH INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1493. <Ref. to GD(H4SO)-172, DTC P1493 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC) Detecting
Criteria.>
CV:DTC P1498 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION
(LOW INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1492. <Ref. to GD(H4SO)-170, DTC P1492 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT), Diagnostic Trouble Code (DTC) Detecting Cri-
teria.>
CW:DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION
(HIGH INPUT)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P1493. <Ref. to GD(H4SO)-172, DTC P1493 EGR SOLENOID
VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT), Diagnostic Trouble Code (DTC) Detecting
Criteria.>
GD(H4SO)-174