Subaru Legacy 2003 Service Manual page 20

DIAGNOSTIC PROCEDURE WITH TROUBLE CODE (DTC)
IMMOBILIZER (DIAGNOSTICS)
B: DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT)
DIAGNOSIS:
• Communication failure between IMM ECM and ECM
WIRING DIAGRAM:
• Non-TURBO
BATTERY
: LHD MODEL
L
: RHD MODEL
R
H4 H4 : 4-CYLINDER ENGINE MODEL
: 6-CYLINDER ENGINE MODEL
H6 H6
WO : WITH OBD MODEL
: WITHOUT OBD MODEL
OO
B:
B135
H6
F44
1 2 3
1 2 3 4
6 7 8 9 10 11 12
5 6 7 8
C:
B136
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
SBF-1
SBF-5
H6
H6
B: B135
C:
B136
D: B137
D:
B141 B137
4 5 1 2
5 6 7 8 9 10 11
14 15 16 17
30
IGNITION
SWITCH
SBF-4
L
H6
H4
B:
B135
3 4
1 2 3
12 13
8 9
10 11 12 13 14 15
18 19 20
20 21 22 23
IM-18
F/B No. 11
F44
B61
R
B141
H4
4 5 6 7
1 2
16 17 18 19
10 11 12 13 14 15
24 25 26 27 28
20 21
B:
B135 H6
4 5 6 7 8 9
3
16 17 18 19
22 23 24 25 26 27 28
IM-00056