Subaru Impreza 2003 Service Manual page 1403

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
BQ:DTC P0604 — INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY
(RAM) ERROR —
• DTC DETECTING CONDITION:
• Immediately at fault recognition
• TROUBLE SYMPTOM:
• Engine does not start.
• Engine stalls.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4DOTC)-48, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)-40, Inspection Mode.>.
• WIRING DIAGRAM:
• LHD model
MAIN RELAY
4
6
5
3
2
1
B47
E
B72
1 2
3 4
F2
1 2 3 4 5 6 7
12 13 14 15 16 17 18 19 20 21 22 23 24
TO FRONT OXYGEN (A/F) SENSOR
No.11
A :
B134
D :
B137
ECM
E : B84
C :
B136
B100
F2
F60
E3
E
B47
F60
1 2
1 2 3 4
3 4
5 6 7 8
5 6
9 10 11 12
13 14 15 16
B84
1 2 3 4 5
8 9 10 11
10 11 12 13 14 15 16 17
22 23 24 25 26 27 28
EN(H4DOTC)-227
2
8
B61 F44
IGNITION
B72
SWITCH
SBF-4
4 1
B134
1 2 3 4 5 6
8 9 10 11 12 13 14 15
16 17 18 19 20 21
B136
6 7 8 9
1 2 3 4 5 6
18 19 20 21
7 8 9 10 11 12
29 30 31
13 14 15 16 17
ENGINE (DIAGNOSTICS)
SBF-5
BATTERY
SBF-1
B137
7
1 2 3 4 5 6
8 9 10 11 12 13 14 15 16
22
17 18 19 20 21 22 23 24
E
7
EN-01292