LAN(diag)-29
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
11.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item Content of diagnosis Note
None Communication for initializing
impossible
Open or short in Subaru
Select Monitor communi-
cation line
dure with Diagnostic Trouble Code (DTC).>
None Diagnostic trouble code (DTC) is
not stored
Internal error of combina-
tion meter
dure with Diagnostic Trouble Code (DTC).>
B0100 Integ. unit system error Body integrated unit inter-
nal error
Diagnostic Trouble Code (DTC).>
B0101 BATT power supply (Control)
error
Open or short in battery
power supply control cir-
cuit
dure with Diagnostic Trouble Code (DTC).>
B0102 BATT p/supply malfunction cont. Open or short of battery
power supply backup cir-
cuit
dure with Diagnostic Trouble Code (DTC).>
B0103 Ignition power failure Open or short in IGN
power supply circuit
Diagnostic Trouble Code (DTC).>
B0104 ACC power failure Open or short in ACC
power supply circuit
Tr o u b l e C o d e ( D T C ) . >
B0106 Shift lock circuit failure Ground short of shift lock
circuit
Diagnostic Trouble Code (DTC).>
B0201 CAN-HS counter abnormal Malfunction of high-speed
CAN communication
with Diagnostic Trouble Code (DTC).>
B0202 CAN-HS bus off Any unit is cut communi-
cation.
ble Code (DTC).>
B0211 CAN-HS ECM data abnormal Received error data from
ECM.
Diagnostic Trouble Code (DTC).>
B0212 CAN-HS TCM data abnormal Received error data from
TCM.
Diagnostic Trouble Code (DTC).>
B0213 CAN-HS VDC/ABS data abnor-
mal
Received error data from
VDC/ABS unit.
with Diagnostic Trouble Code (DTC).>
B0221 CAN-HS ECM no-receive data Not received error data
from ECM.
Diagnostic Trouble Code (DTC).>
B0222 CAN-HS TCM no-receive data Not received error data
from TCM.
Diagnostic Trouble Code (DTC).>
B0223 CAN-HS VDC/ABS no-receive
data
Not received error data
from VDC/ABS unit.
with Diagnostic Trouble Code (DTC).>
B0300 CAN-LS malfunction Open or short in CAN-LS
circuit, on each side or
both sides.
tic Trouble Code (DTC).>
B0301 CAN-LS counter abnormal Malfunction of CAN-LS
communication
with Diagnostic Trouble Code (DTC).>
LAN(diag)-30
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
B0302 CAN-LS bus off Any unit is cut communi-
cation.
ble Code (DTC).>
B0311 CAN-LS meter unit data abnor-
mal
Received error data from
meter.
cedure with Diagnostic Trouble Code (DTC).>
B0313 CAN-LS monitor data abnormal Received error data from
monitor.
dure with Diagnostic Trouble Code (DTC).>
B0321 CAN-LS meter no-receive data Not received error data
from meter.
dure with Diagnostic Trouble Code (DTC).>
B0401 M collation NG Malfunction related immo-
bilizer
B0402 Immobilizer Key collation NG Malfunction related immo-
bilizer
B0403 E/G request NG Malfunction related immo-
bilizer
B0500 Keyless UART com. malfunction Open or short circuit in
keyless UART circuit
dure with Diagnostic Trouble Code (DTC).>
DTC Item Content of diagnosis Note
LAN(diag)-31
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
1. DTC TABLE
NOTE:
When more than two DTC codes are recorded, referring to their combination will make it easy to identify the
possible cause. Refer to the list for typical examples.
DTC to Check Diagnostic Code that was displayed. Probable cause
Body inte-
grated unitECM TCMVDC/ABS
CM
Combina-
tion meter
display
B0100
ERROR, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
B0100 P0600 P1718 — Er IU There could be a prob-
lem in the body inte-
grated unit.
B0221
MAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0221 — P1718 C0057 Er HC It is possible that the
ECM is faulty.
B0222
MAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0222 P0600 — C0057 Er HC It is possible that the
TCM is faulty.
B0223
ABNORMAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
B0223 P0600 P1718 — Er HC It is possible that the
VDC/ABS CM is faulty.
B0321
DATA, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0321 — — — — It is possible that the
combination meter is
faulty.
B0313
ABNORMAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
B0313 — — — — It is possible that the
navigation monitor or
MFD is faulty.
B0500
FUNCTION, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
B0500 — — — — It is possible that the
keyless entry module
is faulty.
LAN(diag)-35
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
B: DIAGNOSTIC TROUBLE CODE (DTC) IS NOT STORED
DIAGNOSIS:
Defective combination meter
TROUBLE SYMPTOM:
•Communication error display in odo/trip meter is not cleared.
•“No trouble code” is displayed on Subaru Select Monitor.
NOTE:
If DTC is not displayed on Subaru Select Monitor, LAN communication System should be OK.
C: DTC B0100 INTEG. UNIT SYSTEM ERROR
DTC DETECTING CONDITION:
System error in body integrated unit
TROUBLE SYMPTOM:
•Check light comes on in the combination meter, and displays communication error display “Er IU”.
•LAN communication immobilizer function may not be executed normally.
Step Check Yes No
1CHECK COMMUNICATION ERROR DIS-
PLAY WITH COMBINATION METER.
Tu r n t h e i g n i t i o n s w i t c h t o O N .
Is communication error dis-
played?
Inspect the DTC. Go to step 2.
2CHECK COMBINATION METER.
Perfor m the self-diagnosis of combination
meter.
Is combination meter OK? Go to step 3.Replace the com-
bination meter.
Meter.>
3CHECK THE BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body integrated unit data
received”.
Is “Yes” displayed? Go to step 4.Replace the body
integrated unit.
Unit.>
4CHECK THE BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body Integrated unit counter
update”.
Is “Yes” displayed? Repair the poor
contact of connec-
tor.
Replace the body
integrated unit.
Unit.>
Step Check Yes No
1CHECK ALL DTCS.Is DTC concerning ECM dis-
played?
Go to step 2.Replace the body
integrated unit.
Unit.>
2CHECK DTC CONCERNING ECM.Is output DTC on ECM con-
cerning CAN communication
error?
Replace the body
integrated unit.
Unit.>
Per fo r m th e di ag -
nosis according to
DTC concerning
ECM.
LAN(diag)-40
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
F: DTC B0103 IGNITION POWER FAILURE
DTC DETECTING CONDITION:
IGN power supply circuit is open or shorted.
TROUBLE SYMPTOM:
Symptoms such as illuminating the malfunction indicator light or high speed CAN error display “Er HC” may
occur.
WIRING DIAGRAM:
LAN00150
BODY INTEGRATED UNIT
A1A24
MICRO COMPUTER
B1A8
B72
IGNITION SWITCH
1B
2
4
ACC
ACCOFF
IG
ON
B52B:
34128910 1112 13 14 15 16 17 18 19 20 21 22 23 24567
B280B:
B281C:
567821943102422 2325111213141526 27281617181920 21
5467821931022 23111213141524 25 26 2716171828 29192021 30
i84A:
1234567891011121314151617181920212223242526272829303132333435
12345678910 11 12 19 2013 14 15 16 17 18
i5A:
ACC POWER SUPPLY
B52i5A:B:
E
MAIN SBF-11
FB-28 NO.31
BATTERY
IG POWER SUPPLY
i84
B280B:
A:
B281C:
A21C9B22C8
EE
FB-37 NO.12
B72
134562
FUSE &RELAY BOX
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 12).
Is the fuse blown out? Replace the fuse
(No. 12). If the
replaced fuse has
blown out easily,
repair the short cir-
cuit of harness
between fuse (No.
12) and body inte-
grated unit.
Go to step 2.
LAN(diag)-46
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
I: DTC B0201 CAN-HS COUNTER ABNORMAL
DTC DETECTING CONDITION:
High speed CAN communication of body integrated unit which monitor the error data and non-received data
are faulty.
TROUBLE SYMPTOM:
•“Er HC” is displayed in odo/trip meter.
•Malfunction indicator light illuminates.
WIRING DIAGRAM:
VDCCM & H/U
B310
B20B30
BODY INTEGRATEDUNIT
B280B:
TCM
B54A:
23
B359
YAW R AT ESENSOR
34
20
B231
21
STEERING ANGLESENSOR
B231
1234
B54A:
12 7 8 9563410 11 1219 20 2113 14 15 16 17 1822 23 24
B136B310
B280B:
5467821931022 23111213141524 25 26 2716171828 29192021 30
ECM
B136
27
35
A3A4
TWISTED PAIR LINE
12345678910 11 12 13 14
15 16 17 18 19 2021 22 23 24 25 26 27 2829 30 31 32 33 3435 36 37 38 39403940
27 28394016101112131415252430
9871718192028212223293231
123456
2726333435
LAN00191
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Connect the tester to vehicle side connec-
tor, and measure the resistance.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance between 55
— 65 Ω?
Go to step 2.Go to step 5.
LAN(diag)-50
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
J: DTC B0202 CAN-HS BUS OFF
DTC DETECTING CONDITION:
•Find the unit or CAN line in which trouble occurs, and repair and replace it.
•Not received data and error data may be detected at the same time.
TROUBLE SYMPTOM:
“Er HC” is displayed in odo/trip meter.
WIRING DIAGRAM:
VDCCM & H/U
B310
B20B30
BODY INTEGRATEDUNIT
B280B:
TCM
B54A:
23
B359
YAW R AT ESENSOR
34
20
B231
21
STEERING ANGLESENSOR
B231
1234
B54A:
12 7 8 9563410 11 1219 20 2113 14 15 16 17 1822 23 24
B136B310
B280B:
5467821931022 23111213141524 25 26 2716171828 29192021 30
ECM
B136
27
35
A3A4
TWISTED PAIR LINE
12345678910 11 12 13 14
15 16 17 18 19 2021 22 23 24 25 26 27 2829 30 31 32 33 3435 36 37 38 39403940
27 28394016101112131415252430
9871718192028212223293231
123456
2726333435
LAN00191
Step Check Yes No
1CHECK TCM.
1) Disconnect the TCM connector (B54).
2) Clear the memory of the body integrated
unit.
3) Read DTC of body integrated unit.
Is DTC (B0202) displayed? Go to step 2.Replace the TCM.
trol Module
(TCM).>
LAN(diag)-54
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
L: 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:
VDCCM & H/U
B310
B20B30
BODY INTEGRATEDUNIT
B280B:
TCM
B54A:
23
B359
YAW R AT ESENSOR
34
20
B231
21
STEERING ANGLESENSOR
B231
1234
B54A:
12 7 8 9563410 11 1219 20 2113 14 15 16 17 1822 23 24
B136B310
B280B:
5467821931022 23111213141524 25 26 2716171828 29192021 30
ECM
B136
27
35
A3A4
TWISTED PAIR LINE
12345678910 11 12 13 14
15 16 17 18 19 2021 22 23 24 25 26 27 2829 30 31 32 33 3435 36 37 38 39403940
27 28394016101112131415252430
9871718192028212223293231
123456
2726333435
LAN00191
Step Check Yes No
1CHECK TCM.
Read the DTC of TCM using Subaru Select
Monitor.
Is DTC other than “CAN com-
munication” displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Replace the TCM.
trol Module
(TCM).>