Subaru Legacy 2003 Service Manual page 453

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ENGINE MALFUNCTION INDICATOR LAMP (MI)
ENGINE (DIAGNOSTICS)
D: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MI) DOES NOT GO
OFF.
• DIAGNOSIS:
• The CHECK ENGINE malfunction indicator lamp (MI) circuit is shorted.
• TROUBLE SYMPTOM:
• Although MI comes on when engine runs, trouble code is not shown on Subaru select monitor or OBD-
II general scan tool display.
• WIRING DIAGRAM:
IGNITION
RELAY
*
1
*
2
*
3
4
*
B157
3
*
5
COMBINATION
METER
i12
B72
1 2 3
1 2
7 8 9 10 11 12 13 14
3 4
B157
1
2
3
4
9
14 15 16
19
24 25 26
10
17
20
5
6
11 12 13
18
21 22 23
7
8
B72
4
i1
B36
ECM
B134
i12
4 5 6
1 2
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25
29
34 35 36
27
30
37
28
31 32 33
38
EN(H4SO)-56
IGNITION
SWITCH
SBF-4
1
LHD MODEL : 10
*
1
RHD MODEL : 37
LHD MODEL : 11
*
2
RHD MODEL : 34
LHD MODEL : 13
*
3
RHD MODEL : 36
LHD MODEL : 9
*
4
RHD MODEL : 38
LHD MODEL : 12
*
5
RHD MODEL : 15
B134
3 4
5 6
7 8
26 27 28 29
30 31 32 33
34 35
BATTERY
No. 5
SBF-1
B36
A1 A2
A4 A5 A6
A3
B1 B2
B4 B5 B6
B3
C2
C4
C5 C6
D1 D2
D4 D5 D6
C3
E1 E2
E4 E5 E6
F1
F6
G1
G6
H1
H6
I1
I6
J1
J6
K1
K6
L1
L2
L4 L5 L6
N3
M1 M2
M4 M5 M6
N2
N4
N5 N6
O3
O1 O2
O4 O5 O6
P3
P1 P2
P4 P5
P6
EN-01116

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