Subaru Impreza 2003 Service Manual page 655

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
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)-46, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)-39, OPERATION, Inspec-
tion 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
2
LHD LHD
B61 F44
B22
E3
E58
B328
B22
E3
EN(H4SO)-243
BATTERY
SBF-5
E
ENGINE (DIAGNOSTICS)
E18 B328
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
22 23 24 25 26 27 28
20 21
B137
1 2 3 4
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
20 21 22 23 24 25 26
18 19
EN-01432