2009 SUBARU TRIBECA brake light

5AT(diag)-45
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK DTC.Is any of following DTC dis-
played? / AT CAN Communica-
tion Circuit / Output Speed
Sensor Circuit / AT Vehicle
Speed Sensor Circuit Malfunc-
tion (Rear Wheel)
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 2.
2CHECK THE BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON. (Engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Depress the brake pedal.
6) Read the data of brake pedal switch using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is ON displayed? Go to step 3.Go to step 4.
3CHECK TCM.
Read the data of brake pedal switch using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is ON displayed? A temporary poor
contact of connec-
tor or harness may
be the cause.
Check the poor
contact.
Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
4CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Disconnect the connector from body inte-
grated unit.
2) Depress the brake pedal.
3) Measure the voltage between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 7.Go to step 5.
5CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from stop light
switch.
3) Measure the resistance of harness
between body integrated unit and stop light
switch.
Connector & terminal
(B281) No. 23 — (B64) No. 2:
Is the resistance less than 1
Ω?
Go to step 6.Repair the open
circuit of harness
between body inte-
grated unit and
stop light switch.
6CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
Measure the resistance of harness between
body integrated unit connector and stop light
switch.
Connector & terminal
(B281) No. 23 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 7.Repair the short
circuit of harness
between body inte-
grated unit and
stop light switch.
7CHECK POOR CONTACT.Is there poor contact in input
signal of brake switch?
Repair the poor
contact.
Check the body
integrated unit.

5AT(diag)-50
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
G: DTC P0724 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT HIGH
DTC DETECTING CONDITION:
Brake switch malfunction, open input signal circuit
TROUBLE SYMPTOM:
Gear is not shifted down when climbing a hill.
WIRING DIAGRAM:
AT-03287
STOP LIGHTSWITCH
B65
BODY INTEGRATEDUNIT
B280A:
B281B:
B23
A20A30
B159
213489765
2
1
43
TCMB54
BATTERY
MAIN SBF SBF-2
NO.8
E
87654321
212220191615141312111091718282726252423
B281B:
87654321
2223212019161514131211109173018292827262524
B280A:
B54
12789563410 11 1219 20 2113 14 15 16 17 18222324
B65
1234

5AT(diag)-51
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK DTC.Is any of following DTC
detected? / AT CAN Communi-
cation Circuit / Output Speed
Sensor Circuit / AT Vehicle
Speed Sensor Circuit Malfunc-
tion (Rear Wheel)
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 2.
2CHECK THE BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON. (Engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Read the data of brake pedal switch using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is OFF displayed? Go to step 3.Go to step 4.
3CHECK TCM.
Read the data of brake pedal switch using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is OFF displayed? A temporary poor
contact of connec-
tor or harness may
be the cause.
Check the poor
contact.
Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
4CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the voltage between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 5.Go to step 7.
5CHECK STOP LIGHT SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from stop light
switch.
3) Measure the resistance of harness
between stop light switch connectors.
Te r m i n a l s
No. 1 — No. 2:
Is the resistance more than 1
MΩ?
Go to step 6.Replace the stop
light switch.
6CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
1) Turn the ignition switch to ON.
2) Measure the voltage of harness between
body integrated unit connector and chassis
ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 7.Repair the short
circuit of harness
between TCM and
stop light switch.
7CHECK POOR CONTACT.Is there poor contact in input
signal of brake switch?
Repair the poor
contact.
Check the body
integrated unit.

5AT(diag)-73
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 17 — (B11) No. 15:
(B55) No. 8 — (B11) No. 4:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
Is the resistance less than 1
Ω?
Go to step 2.Repair the open
circuit of harness
between TCM and
transmission con-
nector.
2CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 8 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 3.Repair the short
circuit of harness
between TCM and
transmission con-
nector.
3CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all the connectors.
2) Turn the ignition switch to ON. (Engine
OFF)
3) Check the input signal of the H&LR/C oil
pressure SW.
Is OFF displayed? Go to step 4.Go to step 6.
4CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Shift to “D” range and brake ON (1st) with
checking current gear position using Subaru
Select Monitor.
4) Check the input signal of the H&LR/C oil
pressure SW.
Is ON displayed? Even if the SPORT
indicator light
blinks, the system
is in normal condi-
tion. A temporary
poor contact of
connector or har-
ness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
Go to step 5.

5AT(diag)-78
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 22 — (B11) No. 16:
(B54) No. 21 — (B11) No. 10:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
Is the resistance less than 1
Ω?
Go to step 2.Repair the open
circuit of harness
between TCM and
transmission con-
nector.
2CHECK HARNESS CONNECTOR BETWEEN
TCM AND BODY HARNESS.
Measure the resistance of harness between
TCM connector and body harness.
Connector & terminal
(B54) No. 21 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 3.Repair the short
circuit of harness
between TCM and
transmission con-
nector.
3CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all the connectors.
2) Turn the ignition switch to ON. (Engine
OFF)
3) Check input signal of D/C oil pressure SW.
Is OFF displayed? Go to step 4.Go to step 6.
4CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Shift to 2nd speed of manual mode and
brake ON with checking current gear position
using Subaru Select Monitor.
4) Check input signal of D/C oil pressure SW.
Is ON displayed? Even if the SPORT
indicator light
blinks, the system
is in normal condi-
tion. A temporary
poor contact of
connector or har-
ness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
Go to step 5.

CS-7
AT Shift Lock Control System
CONTROL SYSTEMS
B: ELECTRICAL SPECIFICATION
ItemTo c o n n e c t o r
No.Te r m i n a l N o .Input/Output signal
Measured value and measuring condition
Battery power supplyB2811
9 — 16 V2
B280 7
Ignition power supply i84 1 10 — 15 V when ignition switch is at ON or START.
ACC power supply i84 24 10 — 15 V when ignition switch is at ACC.
TCM (“P” range)B280 20Pulse signalB280 30
Stop light switch B281 239 — 16 V when stop light switch is ON.
0 V when stop light switch is OFF.
“P” range switch B281 130 V when select lever is in “P” range.
9 — 16 V when select lever is in other positions than “P” range.
Shift lock solenoid signal B280 68.5 — 16 V when shift lock is released.
0 V when shift lock is operating.
Key war ning switch signal B281 79 — 16 V when key is inserted.
0 V when key is removed.
Key lock solenoid signal B280 5
7.5 — 16 V when ignition switch is turned ON, with select lever
in “P” range and brake switch ON.
0 V at other conditions than above.
Ground
B280 22
—i84 21
B2818
9
CS-00273
71928
61827
51741626152514241312231122
3102921
1820
B281side
72030
619291828
51741627152614132512241123
3102922
1821
B280side
82335
722342162033
51932183117301615291428
41327
312261121025
1924
i84side

CS-13
AT Shift Lock Control System
CONTROL SYSTEMS
Step Check Yes No
1CHECK INPUT SIGNAL OF BODY INTE-
GRATED UNIT USING SUBARU SELECT
MONITOR.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch and Subaru Select
Monitor to ON.
4) Depress the brake pedal.
5) Read the input signal of stop light switch
from Subaru Select Monitor.
Select Monitor.>
Is “ON” displayed? Go to step 2.Go to step 3.
2CHECK DTC OF BODY INTEGRATED UNIT.
Check DTC of the body integrated unit.
Diagnostic Trouble Code (DTC).>
Is DTC (B0106) displayed? Repair or replace it
according to the
DTC.
Go to step 6.
3CHECK STOP LIGHT SWITCH.
Depress the brake pedal.
Does the stop light illuminate? Go to step 4.Check the stop
light system.
4CHECK HARNESS BETWEEN STOP LIGHT
SWITCH AND BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors of body inte-
grated unit and stop light switch.
3) Measure the resistance of harness
between stop light switch and body integrated
unit.
Connector & terminal
(B65) No. 3 — (B281) No. 23:
Is the resistance more than 1
MΩ?
Repair the open
circuit of harness
between the body
integrated unit and
stop light switch.
Go to step 5.
5CHECK HARNESS BETWEEN STOP LIGHT
SWITCH AND BODY INTEGRATED UNIT.
Measure the resistance of harness between
stop light switch and chassis ground.
Connector & terminal
(B65) No. 3 — Chassis ground:
Is the resistance less than 1
Ω?
Repair the short
circuit of harness
between the body
integrated unit and
stop light switch.
Go to step 7.
6CHECK SHIFT LOCK SOLENOID.
1) Disconnect the connector of shift lock sole-
noid.
2) Connect the battery to connector terminal
of shift lock solenoid, and operate the solenoid.
Te r m i n a l s
No. 3 (+) — No. 4 (–):
Is the shift lock solenoid oper-
ating properly?
Go to step 7.Replace the shift
lock solenoid.
7CHECK SHIFT LOCK OPERATION.
1) Connect all the connectors.
2) Shift the select lever to “P” range.
3) Shift the select lever from “P” range to “R”
range.
Can the select lever shift from
“P” range to “R” range?
Check the body
integrated unit.
A temporary poor
contact of connec-
tor or harness may
be the cause.

CS-15
AT Shift Lock Control System
CONTROL SYSTEMS
Step Check Yes No
1CHECK INPUT SIGNAL OF BODY INTE-
GRATED UNIT USING SUBARU SELECT
MONITOR.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch and Subaru Select
Monitor to ON.
4) Read the input signal of shift position from
Subaru Select Monitor.
Select Monitor.>
Is “7” displayed? Go to step 2.Check the TCM
and body inte-
grated unit.
2CHECK INPUT SIGNAL OF BODY INTE-
GRATED UNIT USING SUBARU SELECT
MONITOR.
Read the input signal of stop light switch from
Subaru Select Monitor.
Select Monitor.>
Is “ON” displayed? Go to step 5.Go to step 3.
3CHECK STOP LIGHT SWITCH.
Depress the brake pedal.
Does the stop light illuminate? Go to step 4.Check the stop
light system.
4CHECK HARNESS BETWEEN STOP LIGHT
SWITCH AND BODY INTEGRATED UNIT.
1) Depress the brake pedal.
2) Measure the voltage between body inte-
grated unit and chassis ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
Is the voltage more than 9 V? Go to step 5.Repair the open or
short circuit of har-
ness between the
body integrated
unit and stop light
switch.
5CHECK DTC OF BODY INTEGRATED UNIT.
Check DTC of the body integrated unit.
Diagnostic Trouble Code (DTC).>
Is DTC (B0106) displayed? Repair or replace it
according to the
DTC.
Go to step 6.
6CHECK SHIFT LOCK SOLENOID.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of shift lock sole-
noid.
3) Connect the battery to connector terminal
of shift lock solenoid, and operate the solenoid.
Te r m i n a l s
No. 3 (+) — No. 4 (–):
Is the shift lock solenoid oper-
ating properly?
Go to step 7.Replace the shift
lock solenoid.
7CHECK OPERATION.
1) Connect all the connectors.
2) Turn the ignition switch ON. (Engine OFF)
3) Shift the select lever to “P” range.
4) Depress the brake pedal.
5) Shift the select lever from “P” range to “R”
range.
Can the select lever shift from
“P” range to “R” range?
A temporary poor
contact of connec-
tor or harness may
be the cause.
Check the body
integrated unit.