SUBARU TRIBECA 2009 1.G Service Workshop Manual

LAN(diag)-55
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
M: DTC B0213 CAN-HS VDC/ABS DATA ABNORMAL
DTC DETECTING CONDITION:
VDC CM body has error, the main harness is open or shorted, the connector is not connected properly, or the
terminal has poor caulking.
TROUBLE SYMPTOM:
•ABS warning light and VDC warning light come on.
•“Er HC” or “Er Ab” 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 VDC CM.
Read the DTC of VDC CM 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 VDC
CM. 7, VDC Control
Module & Hydrau-
lic Control Unit
(VDCCM&H/U).>

LAN(diag)-56
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
N: DTC B0221 CAN-HS ECM NO-RECEIVE DATA
DTC DETECTING CONDITION:
Defective ECM. (If error is in the main harness, DTC P0600 CAN communication link is input simultaneous-
ly.)
NOTE:
When more than two DTCs are displayed. Code (DTC).>
TROUBLE SYMPTOM:
•Malfunction indicator light illuminates.
•“Er HC” is displayed in odo/trip meter.
•P1718 (TCM) and C0057 (VDC CU) are output.
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

LAN(diag)-57
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Measure the resistance between harness
connectors.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance 55 — 65 Ω?
(Specification 60 Ω)
Read the DTC of
ECM. Perform the
diagnosis accord-
ing to DTC. to
EN(H6DO)(diag)-
26, READ DIAG-
NOSTIC TROU-
BLE CODE (DTC)
FOR ENGINE
(NORMAL
MODE), OPERA-
TION, Subaru
Select Monitor.>
Go to step 2.
2CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Measure the resistance between harness
connectors.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance 115 — 125Ω?
(End resistance or main wiring
harness is open.)
Go to step 3.Related line of
body integrated
unit is open when
∞ Ω. Repair the
open circuit of har-
ness or replace
harness.
3CHECK HARNESS.
1) Disconnect the ECM connector (B136).
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(B136) No. 27 — No. 35:
Is the resistance 115 — 125
Ω? (End resistance specifica-
tion 120 Ω)
Go to step 4.Go to step 5.
4CHECK ECM.
1) Disconnect the ECM connector (B136).
2) Measure the resistance between ECM ter-
minals.
Connector & terminal
(B136) No. 27 — No. 35:
Is the resistance between 115
— 125 Ω?
Read the DTC of
ECM. Perform the
diagnosis accord-
ing to DTC. to
EN(H6DO)(diag)-
26, READ DIAG-
NOSTIC TROU-
BLE CODE (DTC)
FOR ENGINE
(NORMAL
MODE), OPERA-
TION, Subaru
Select Monitor.>
End resistance is
open. Replace the
ECM. FU(H6DO)-32,
Engine Control
Module (ECM).>
5CHECK HARNESS.
1) Disconnect the ECM connector (B137).
2) Measure the resistance between harness
connector and chassis ground.
Connector & terminal
(B136) No. 27 — Chassis ground:
(B136) No. 35 — Chassis ground:
Is the resistance less than 10
Ω?
Repair the short
circuit of harness
or replace har-
ness.
Go to step 6.

LAN(diag)-58
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
6CHECK HARNESS.
1) Disconnect the body integrated unit (B280),
ECM (B136), TCM (B54), VDC CU (B310) and
Ya w r a t e s e n s o r ( B 3 5 9 ) c o n n e c t o r s .
2) Measure the voltage between harness con-
nector and chassis ground while turning the
ignition switch to ON.
Connector & terminal
(B280) No. 20 (+) — Chassis ground (–):
(B280) No. 30 (+) — Chassis ground (–):
Is the voltage more than 6 V? Repair or replace
the short circuit of
the harness.
Read the DTC of
ECM. Perform the
diagnosis accord-
ing to DTC. to
EN(H6DO)(diag)-
26, READ DIAG-
NOSTIC TROU-
BLE CODE (DTC)
FOR ENGINE
(NORMAL
MODE), OPERA-
TION, Subaru
Select Monitor.>
Step Check Yes No

LAN(diag)-59
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
O: DTC B0222 CAN-HS TCM NO-RECEIVE DATA
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.
NOTE:
When more than two DTCs are displayed. Code (DTC).>
TROUBLE SYMPTOM:
•Malfunction indicator light illuminates.
•“Er HC” is displayed in odo/trip meter.
•P0600 (ECM) and C0057 (VDC CM) are output.
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

LAN(diag)-60
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the TCM connector (B54).
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(B54) No. 3 — No. 4:
Is the resistance ∞ Ω?Open circuit in
related lines of
TCM. Repair the
open circuit of har-
ness or replace
harness.
Go to step 2.
2CHECK TCM.
Read the DTC of TCM using Subaru Select
Monitor. 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.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>

LAN(diag)-61
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
P: DTC B0223 CAN-HS VDC/ABS NO-RECEIVE DATA
DTC DETECTING CONDITION:
Defective VDC CM. (If error is in the main harness, DTC P0600 High-speed CAN circuit is input at the same
time.)
NOTE:
When more than two DTCs are displayed. Code (DTC).>
TROUBLE SYMPTOM:
•ABS warning light and VDC warning light come on.
•“Er HC” is displayed in odo/trip meter.
•P0600 (ECM) and C1718 (TCM) are output.
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

LAN(diag)-62
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance between 55
— 65 Ω?
Read the DTC of
VDC CM, and per-
for m the diagnosis
according to DTC.
Go to step 2.
2CHECK HARNESS.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(B280) No. 20 — No. 30:
Is the resistance between 115
— 125 Ω?
Go to step 5.Go to step 3.
3CHECK HARNESS.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminal and chassis ground.
Connector & terminal
(B280) No. 20 — Chassis ground:
(B280) No. 30 — Chassis ground:
Is the resistance ∞ Ω?Open circuit in
related line of body
integrated unit.
Repair the open
circuit of harness
or replace har-
ness.
Go to step 4.
4CHECK HARNESS.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground. (Ignition
switch ON)
Connector & terminal
(B280) No. 20 (+) — Chassis ground (–):
(B280) No. 30 (+) — Chassis ground (–):
Is the voltage more than 6 V? Repair the short
circuit of harness
or replace har-
ness.
Go to step 5.
5CHECK END RESISTANCE.
1) Disconnect the VDC CM harness connec-
tor.
2) Measure the resistance between VDC CM
connector terminals.
Connector & terminal
(B310) No. 20 — No. 34:
Is the resistance between 115
— 125 Ω?
Go to step 6.End resistance is
open. Replace the
VDC CM. VDC-7, VDC Con-
trol Module &
Hydraulic Control
Unit (VDCCM&H/
U).>
6CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280) and VDC CM connector (B310).
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(B310) No. 13 — (B280) No. 20:
(B310) No. 29 — (B280) No. 30:
Is the resistance less than 10
Ω?
Go to step 7.Main wiring har-
ness is open.
Repair the open
circuit of harness
or replace har-
ness.
7CHECK VDC CM.
1) Connect all the connectors.
2) Read the DTC of VDC CM 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 concerning
VDC CM.
Replace the VDC
CM. 7, VDC Control
Module & Hydrau-
lic Control Unit
(VDCCM&H/U).>

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.

LAN(diag)-64
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
2CHECK HARNESS.
1) Disconnect the combination meter connec-
tor.
2) Measure the resistance between junction
connector and combination meter connector.
Connector & terminal
(i10) No. A29 — (i77) No. 1 to 6:
(i10) No. A30 — (i77) No. 7 to 12:
Is the resistance less than 10
Ω?
Go to step 3.Repair the open
circuit of harness
or replace har-
ness.
3CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280) and Auto A/C control module
connector (B283).
2) Measure the resistance between body inte-
grated unit connector and auto A/C control
module connector.
Connector & terminal
(B283) No. 1 — (B280) No. 26:
(B283) No. 14 — (B280) No. 25:
Is the resistance less than 10
Ω?
Go to step 4.Repair the open
circuit of harness
or replace har-
ness.
4CHECK HARNESS.
1) Connect the junction connector.
2) Measure the resistance between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B280) No. 25 — Chassis ground:
(B280) No. 26 — Chassis ground:
(i84) No. 26 — Chassis ground:
(i84) No. 27 — Chassis ground:
Is the resistance less than 10
Ω?
Repair the short
circuit of harness
or replace har-
ness.
Go to step 5.
5CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B280) No. 25 (+) — Chassis ground (–):
(B280) No. 26 (+) — Chassis ground (–):
(i84) No. 26 (+) — Chassis ground (–):
(i84) No. 27 (+) — Chassis ground (–):
Is the voltage more than 6 V? Repair the short
circuit of harness
or replace har-
ness.
Go to step 6.
6CHECK AUTO A/C.
Perfor m the auto A/C self-diagnosis. AC(diag)-13, A/C CONTROL SYSTEM SELF-
DIAGNOSIS, OPERATION, Diagnostic Chart
for Self-diagnosis.>
Is the self-diagnosis OK? Go to step 7.Replace the auto
A/C control mod-
ule. 32, REMOVAL,
Control Unit (Auto
A/C Model).>
7CHECK COMBINATION METER.
1) Connect all the connectors.
2) Turn the ignition switch to ON.
3) Check the display of combination meter,
odo/trip.
Is “Er SS” and “Er SP” dis-
played?
Replace the body
integrated unit.
REMOVAL, Body
Integrated Unit.>
Replace the com-
bination meter.
REMOVAL, Com-
bination Meter.>
Step Check Yes No