Page 480 of 2453
LAN(diag)-24
Subaru Select Monitor
LAN SYSTEM (DIAGNOSTICS)
10.FUNCTION CHECK
In order to check the body integrated unit function,
inspect the body integrated unit and actuator using
Subaru Select Monitor without operating switches.
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Integ. Unit mode} and press the
[YES] key.
3) On the «Integ. Unit mode failure diag» display
screen, select the {Function Check} and press the
[YES] key.
4) Select the item to be operated on the «Function
Check» display screen with «UP/Down key» and
press the [YES] key.
5) Pressing [YES] starts, [NO] cancels the opera-
tion and [YES] returns to the System Operation
Check Mode display screen.
NOTE:
If not equipped (based on area or condition), pro-
cess will not go on.
Page 483 of 2453
LAN(diag)-27
Read Current Data
LAN SYSTEM (DIAGNOSTICS)
9. Read Current Data
A: OPERATION
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Integ. Unit mode} and press the
[YES] key.
3) On the «Integ. unit mode failure diag» display
screen, select the {Current Data Display & Save}
and press the [YES] key.
4) On the «Data Display Menu» screen, select the
{12 Data Display} and press the [YES] key.
5) Using the scroll key, scroll the display screen up
or down until the desired data is shown.
TA, OPERATION, Subaru Select Monitor.>
to LAN(diag)-14, DISPLAY OF ON/OFF DATA,
OPERATION, Subaru Select Monitor.>
LAN(diag)-18, CONFIRMATION OF CURRENT
SETTING, OPERATION, Subaru Select Monitor.>
Page 486 of 2453

LAN(diag)-30
List of Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
B0302 CAN-LS bus off Any unit is cut communi-
cation.
OFF, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>
B0311 CAN-LS meter unit data abnor-
mal
Received error data from
meter.
METER UNIT DATA ABNORMAL, Diagnostic Pro-
cedure with Diagnostic Trouble Code (DTC).>
B0313 CAN-LS monitor data abnormal Received error data from
monitor.
MONITOR DATA ABNORMAL, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
B0321 CAN-LS meter no-receive data Not received error data
from meter.
METER NO-RECEIVE DATA, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
B0401 M collation NG Malfunction related immo-
bilizer
Code (DTC).>
B0402 Immobilizer Key collation NG Malfunction related immo-
bilizer
Code (DTC).>
B0403 E/G request NG Malfunction related immo-
bilizer
Code (DTC).>
B0500 Keyless UART com. malfunction Open or short circuit in
keyless UART circuit
UART COM. MALFUNCTION, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
DTC Item Content of diagnosis Note
Page 487 of 2453

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
B0100 INTEG. UNIT SYSTEM
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
B0211 CAN-HS ECM DATA ABNOR-
MAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0221 — P1718 C0057 Er HC It is possible that the
ECM is faulty.
B0222
B0212 CAN-HS TCM DATA ABNOR-
MAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0222 P0600 — C0057 Er HC It is possible that the
TCM is faulty.
B0223
B0213 CAN-HS VDC/ABS DATA
ABNORMAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
B0223 P0600 P1718 — Er HC It is possible that the
VDC/ABS CM is faulty.
B0321
B0321 CAN-LS METER NO-RECEIVE
DATA, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
B0321 — — — — It is possible that the
combination meter is
faulty.
B0313
B0313 CAN-LS MONITOR DATA
ABNORMAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
B0313 — — — — It is possible that the
navigation monitor or
MFD is faulty.
B0500
B0500 KEYLESS UART COM. MAL-
FUNCTION, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
B0500 — — — — It is possible that the
keyless entry module
is faulty.
Page 494 of 2453

LAN(diag)-38
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
E: DTC B0102 BATT P/SUPPLY MALFUNCTION CONT.
DTC DETECTING CONDITION:
Battery power supply backup circuit is open or shorted.
TROUBLE SYMPTOM:
•Engine malfunction indicator light may illuminates.
•Keyless entry, room light and key illumination do not operate.
•“En IU” may display in combination meter.
NOTE:
When some B0101 BATT p/supply malfunction cont. are output at the same time, all function of body inte-
grated unit may not function.
WIRING DIAGRAM:
LAN00149
SYSTEM CONTROL POWER SUPPLYBACK-UP POWER
SUPPLY
BODY INTEGRATED UNIT
B7C2
A21C9B22C8
MICRO COMPUTER
C24B13
i84
B52
B280
R168C:B:
B:
A:
12345678910 11 12 19 2013 14 15 16 17 18
R168C:
B52B:
34128910 1112 13 14 15 16 17 18 19 20 21 22 23 24567
E
MAIN SBF-11BATTERY
B281C:
EE
B280B:
B281C:
567821943102422 2325111213141526 27281617181920 21
5467821931022 23111213141524 25 26 2716171828 29192021 30
i84A:
1234567891011121314151617181920212223242526272829303132333435
FB-18 NO.7MB-29 NO.8
Page 519 of 2453

LAN(diag)-63
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Q: DTC B0300 CAN-LS MALFUNCTION
DTC DETECTING CONDITION:
Either end of low-speed CAN communication line is open or shorted, the connector is not connected prop-
erly, or the terminal has poor caulking.
TROUBLE SYMPTOM:
“Er LC” is displayed in odo/trip meter, but communicating function is OK.
WIRING DIAGRAM:
LAN00192
TO POWER SUPPLY CIRCUITFB-10M/B FUSE NO.28 (P)
1
4
3
7
A9
A4
5
BODY INTEGRATED UNIT
ILLUMINATION & BACK-UPJOINT CONNECTOR
KEYLESS ENTRY CONTROL MODULE
i84
i99
i99
i96
E
i84i96i99
123456789101112131415161718192021222324252627282930313233343510 11 12349561728
12345678
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the CAN junction connector
(i128) and body integrated unit connector (i84).
2) Measure the resistance between connector
terminals.
Connector & terminal
(i84) No. 26 — (i128) No. 7 to 12:
(i84) No. 27 — (i128) No. 1 to 6:
NOTE:The i128 junction connector is freely arranged.
Is the resistance less than 10
Ω?
Go to step 2.Repair the short
circuit of harness
or replace har-
ness.
Page 528 of 2453

LAN(diag)-72
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
V: DTC B0321 CAN-LS METER NO-RECEIVE DATA
DTC DETECTING CONDITION:
Combination meter unit error, or harness between the main harness splice and combination meter unit is
open or shorted, the connector is not connected properly and the terminal has poor caulking.
TROUBLE SYMPTOM:
Fail mode occurs because the data is not received from combination meter unit.
WIRING DIAGRAM:
LAN00192
TO POWER SUPPLY CIRCUITFB-10M/B FUSE NO.28 (P)
1
4
3
7
A9
A4
5
BODY INTEGRATED UNIT
ILLUMINATION & BACK-UPJOINT CONNECTOR
KEYLESS ENTRY CONTROL MODULE
i84
i99
i99
i96
E
i84i96i99
123456789101112131415161718192021222324252627282930313233343510 11 12349561728
12345678
Step Check Yes No
1CHECK COMMUNICATION LINE.
1) Warm up the engine.
2) Compare the data of body integrated unit
and combination meter using Subaru Select
Monitor.
Check item:
•Engine speed
•Shift range
Is the data displayed same? Go to step 2.Perform the self-
diagnosis of com-
bination meter.
SELF-DIAGNO-
SIS, INSPEC-
TION,
Combination
Meter System.>
Page 530 of 2453

LAN(diag)-74
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
W: DTC B0500 KEYLESS UART COM. MALFUNCTION
DTC DETECTING CONDITION:
UART between keyless control unit and body integrated unit is open or shorted, the connector is not con-
nected properly, or the terminal has poor caulking.
TROUBLE SYMPTOM:
Door lock does not operate with keyless.
WIRING DIAGRAM:
i128
1*
2*1*
2*
CAN JOINTCONNECTOR
i10
B283
A29A30
A27
A26
B26
B25
A: i84
B: B280B1
B14
TWISTED PAIR LINE
5467821931022 231112131415242526 2716171828 29192021 30
B280
i84
1234567891011121314151617181920212223242526272829303132333435
2345 678912 13 14 15 16 17 18 19 20 21 2210111
B283
i10
COMBINATIONMETER
BODYINTEGRATEDUNIT
AUTO A/CCONTROLMODULE
123456789101112
LAN00193
A:
B:
2*
1*
A6
A14
FRONTMONITOR
21
22MFD
2* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 7, 8, 9, 10, 11 AND 12
1* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 1, 2, 3, 4, 5 AND 6
i119
i122
A:
A:
A:
i119A:
i122
i128B:
MFDNAVI
MFD
NAVI
9
19 20
105672143131211
14 15 16 17
8
18222125262423
12345678910 11 12 13 14 15 16
345 678919 20 2114 15 16 17 1812101211 13 22
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (i84) and keyless entry control unit con-
nector (i96).
2) Measure the resistance between har-
nesses.
Connector & terminal
(i84) No. 9 — (i96) No. 3:
Is the resistance less than 10
Ω?
Go to step 2.Repair the open
circuit of harness
or replace har-
ness.