Subaru Legacy 2003 Service Manual page 1879

ENGINE MALFUNCTION INDICATOR LAMP (MI)
ENGINE (DIAGNOSTICS)
C: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MI) DOES NOT COME
ON.
• DIAGNOSIS:
• The CHECK ENGINE malfunction indicator lamp (MI) circuit is open or shorted.
• TROUBLE SYMPTOM:
• When the ignition switch is turned ON (engine OFF), the MI does not come on.
• WIRING DIAGRAM:
IGNITION
RELAY
37
34
36
38
B157
A8
B5
B10
COMBINATION
METER
A : i10
B :
i11
B72
1 2
3 4
B157
1 2
3 4 9 14 15 16 19
10 17 20
5 6
11 12 13 18 21 22 23
7 8
IGNITION
B72
SWITCH
4
i1
B36
B137 ECM
i11
1 2 3 4 5 6 7
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
24 25 26 29 34 35 36
27 30 37
28 31 32 33 38
EN(H4DOSTC)-40
SBF-4
1
i10
8 9 10 11 12 13 14
B137
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
BATTERY
No.5
SBF-1
E
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
L2 L4 L5 L6
L1
N3
M1 M2 M4 M5 M6
N2 N4 N5 N6
O3
O1 O2 O4 O5 O6
P3
P1 P2 P4 P5 P6
E
EN-00928