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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
M: DTC B0212 CAN-HS TCM DATA ABNORMAL
DTC DETECTING CONDITION:
TCM has error, harness between the main harness splice and TCM is open or shorted, connectors are not
connected securely, or the terminal has poor caulking.
TROUBLE SYMPTOM:
• SPORT indicator light blinks.
• "Er HC" or "Er tC" 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
Step
1
CHECK TCM.
Read the DTC of TCM using Subaru Select
Monitor. <Ref. to 4AT(diag)-16, READ DIAG-
NOSTIC TROUBLE CODE (DTC), OPERA-
TION, Subaru Select Monitor.> <Ref. to
5AT(diag)-17, READ DIAGNOSTIC TROUBLE
CODE (DTC), OPERATION, Subaru Select
Monitor.>
ECM
5AT
4AT
A:
B54
TCM
5AT
A:
B54
6 7
1 2
3 4
5 6
19 20
10 11 12
13
14 15
28 29
30
19 20 21
LAN(diag)-56
B:
B280
BODY INTEGRATED
MODULE
4AT A:
B54
1 2
3
4
5
7
8
9
8 9
10 11 12
13 14 15 16
16
17
18
22
23
24
17 18
19 20 21
Check
Is DTC other than "CAN com-
munication" displayed on Sub-
aru Select Monitor?
ABSCM & H/U
VDCCM & H/U
6
7
22 23 24
Yes
Perform the diag-
Replace the TCM.
nosis according to
<Ref. to 4AT-66,
DTC.
Transmission Con-
trol Module
(TCM).> <Ref. to
5AT-61, Transmis-
sion Control Mod-
ule (TCM).>
LAN00029
No
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