Subaru LEGACY 2003 Service Manual page 80

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
VDC (DIAGNOSTICS)
AC:DTC 43 FAULTY VDCCM — ECM COMMUNICATION LINE
DIAGNOSIS:
• AET communication line is broken or short circuited.
• AEB communication line is broken or short circuited.
• AEC communication line is broken or short circuited.
TROUBLE SYMPTOM:
• VDC does not operate.
WIRING DIAGRAM:
:
F96 L
1 2 3 4
1 2 3 4 5 6
10 11 12 13 14 15 16 17 18 19 20
7 8 9 10 11 12 13 14
2 4 6
1 3 5
29 30 31 32 33 34
56 57 58 59 60 61 62 63
A:
B:
C:
: A:
F96 R
5 6 7 8 9
1 2 3 4
8 9 10 11 12
16 17
8 10 11 12
7 9 13
35 36 37 38 39 40 41
64 65 66 67 68 69 70 71
VDC
F87 CONTROL
MODULE
F96
B255
:
B134 H6
B135 : RH4 WO
: LH4
B136 RH4
OO
ENGINE
CONTROL
MODULE
: H6 : LH4 RH4 OO
B134 C: B136
5 6 7
1 2 3
13 14 15
7 8 9 10 11 12 13 14
18 19 20 21 22
15 16 17 18 19 20
21 22 23 24
F87
14 16 18 20
15 17 19
42 43 44 45 46 47 48
72 73 74 75 76 77 78
VDC-78
: WITHOUT OBD MODEL
OO
: WITH OBD MODEL
WO
: RHD MODEL
R
: LHD MODEL
L
H4 : 4 CYLINDER ENGINE
: 6 CYLINDER ENGINE
H6
RH4 : 4 CYLINDER ENGINE RHD MODEL
: 4 CYLINDER ENGINE LHD MODEL
LH4
B:
1 2 3
4 5 6
8 9
10 11 12 13 14 15
22 23
20 21
22 24 26
21 23 25 27
49 50 51 52 53 54 55
79 80 81 82 83
: RH4 WO
B135
4 5 6 7
16 17 18 19
24 25 26 27 28
28
VDC00175