Subaru Impreza 2003 Service Manual page 1767

DIAGNOSTIC PROCEDURE WITHOUT DIAGNOSTIC TROUBLE CODE (DTC)
15.Diagnostic Procedure without Diagnostic Trouble Code (DTC)
A: CHECK FWD SWITCH
DIAGNOSIS:
• The LED does not come on even if FWD switch is ON.
• The FWD switch circuit is open or short.
WIRING DIAGRAM:
LHD MODEL
COMBINATION
METER
FWD
i1
B36
B56
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18
19 20 21 22 23 24
B: i10
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
F27
5 6 9 13 14 17
2
1
7 10 15 18
3 4
8 11 12 16 19 20
IGNITION
SWITCH
C:
i11
B: i10
i2
B37
B: C: TCM
B55 B56
B55
1 2 3 4 7
5 6
10 11 12 13 14 15 16 17 18
19 20 21 22 23 24
C:
1 2 3 4 5 6 7 8 9 10
21 22 25
29
23 26
30
24 27 28
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
SBF-4
FWD SWITCH
B62
F45
1 2 3 4 5
8 9
16 17 18 19 20 21 22
12 13 14 15
i11
1 2 3 4 5
16 17 18 19 20 21 22
12 13 14 15
4AT-97
BATTERY
SBF-1
F27
F45
i1
7 8 9 10 11
6
23 24
i2
7 8 9 10 11
6
23 24
E
E
AT-01149