Subaru IMPREZA 2004 Service Manual page 549

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CF:DTC P1499 EGR SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION
(HIGH INPUT)
• DTC DETECTING CONDITION:
• Immediately at fault recognition
• TROUBLE SYMPTOM:
• Erroneous idling
• Poor driving performance.
• Engine breathing
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO)(diag)-47,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(diag)-40, OPERATION,
Inspection Mode.>.
• WIRING DIAGRAM:
MAIN RELAY
6
4
5
3
2
1
B47
EGR
VALVE
E18
A: B134
B: B135
ECM
C: B136
D: B137
E
LHD 2 LHD
B61 F44
B22
E3
E58
B328
B22
E3
EN(H4SO)(diag)-240
BATTERY
SBF-5
E
B328
E18
1 2 3
4 5 6
B47
1 2
3 4
5 6
F44
1 2 3 4
5 6 7 8
B22
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
B135
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
B137
3 4
1 2
5
6 7 8 9 10 11 12 13
14 15 16 17 18 19 20
B134
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
B136
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26
EN-01432