Subaru Legacy 2004 Service Manual page 487
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C: CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MOD-
ULE (ECM)
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.0)(diag)-
38, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.0)(diag)-32, OPER-
ATION, Inspection Mode.>.
WIRING DIAGRAM:
MAIN RELAY
3
5
6
4
1
2
B47
B21
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
36
37
38
39
40
42
43
44 45
46
48
49
50
51
52
53
54
Diagnostics for Engine Starting Failure
TO IGNITION COIL
No.12
A:
B134
B:
B135
ECM
C:
B136
D: B137
B21
E2
E
A:
B134
1
2
3
4
5
6
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
41
B47
B72
47
1
1
2
3
3
4 5 6
5
EN(H4SO 2.0)(diag)-55
IGNITION
B72
SWITCH
SBF-7
6
3
B:
B135
7
1
2
3
4
5
6
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
1
2
8
9
4
18 19 20 21
6
26
27
ENGINE (DIAGNOSTICS)
SBF-8
No.13
BATTERY
SBF-1
C:
B136
1
2
3
4
7
7 8
9
10
11 12 13 14 15
17 18 19 20 21
22 23
24
28
29
30
31
32
D:
B137
2
3
4
5
6
7
10
11 12 13 14 15
16 17
22 23
24 25
28 29
30 31
E
5
6
16
25
26 27
33 34
35
EN-02429
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