Subaru LEGACY 2004 Service Manual page 772

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
O: DTC B0221 CAN-HS ECM NO-RECEIVE DATA
DTC DETECTING CONDITION:
Defective ECM. (If error is in the main harness, Diagnostic Trouble Code (DTC) P0600 High-speed CAN cir-
cuit is input simultaneously.)
TROUBLE SYMPTOM:
• Engine malfunction indicator light illuminates.
• "Er HC" is displayed in odo/trip meter.
WIRING DIAGRAM:
B: B280
1 2 3 4 5
8 9 10 11 12 13 14 15 16 17 18
21 22 23 24 25 26 27
C: B136
ECM
D: B137
*
1
*
2
TCM
C: B136
1 2 3 4
6 7
7 8 9 10 11 12 13 14 15
19 20
17 18 19 20 21 22 23
28 29 30
28 29 30 31
LAN(diag)-56
B:
B280
BODY INTEGRATED
UNIT
D: B137
5 6
1 2 3
16
8 9 10 11 12 13 14 15
24 25 26 27
18 19 20 21 22 23
32 33 34 35
26 27 28 29
ABSCM & H/U
VDCCM & H/U
*
1 : 2.0 L SOHC RHD MODEL;
2.5 L (KA) RHD MODEL;
2.0 L LHD MODEL;
2.5 L (KS) LHD MODEL
*
2 : EXCEPT FOR 2.0 L SOHC
RHD AND 2.5 L (KA) RHD
MODEL;
2.5 L (EC, K4) LHD MODEL;
3.0 L LHD MODEL
4 5 6 7
16 17
24 25
30 31
LAN00114