Subaru Legacy 2003 Service Manual page 633

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BC: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(H4SO)-47, OPER-
ATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)-40, OPERATION, Inspection
Mode.> .
• WIRING DIAGRAM:
MAIN RELAY
4
6
5
3
2
1
B47
B72 B47
1 2
1 2 3 4
1 2
3 4
5 6 7 8
3 4
5 6
B134
1 2 3 4 5 6
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
NO. 11
A :
B134
B :
B135
ECM
C : B136
D :
B137
*
B22
E3
F44 B22
1
1 2 3 4
5
5 6 7 8
14
9 10 11 12
13 14 15 16
7 8
34 35
EN(H4SO)-236
LHD 6
B61 F44
IGNITION
B72
SWITCH
SBF-4
3 1
: LHD MT MODEL
*
B137
1 2
2 3 4
7 8
6 7 8 9 10 11 12 13
18 19 20
15 16 17 18 19 20
SBF-5
LHD
SBF-1
B136
3 4 5 6
1 2
9
10 11 12 13 14 15 16 17 8 9
10
21 22 23 24 25 26
20 21
BATTERY
B135
3 4 5 6 7
11 12 13 14 15 16 17 18 19
22 23 24 25 26 27 28
EN-01119