2009 SUBARU TRIBECA automatic

5AT(diag)-38
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
C: DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH
INPUT
DTC DETECTING CONDITION:
Input signal circuit to ATF temperature sensor 1 is shorted.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
AT-02037
2
B54
B11
T4
T5
TCM
13
B54
B11
12789563410 11 1219 20 2113 14 15 16 17 18222324
TRANSMISSION
125678
131415169101112
34
17181920
512
161
123 68910 11 12 13 14451516
T5
7

5AT(diag)-39
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 connector and chassis ground.
Connector & terminal
(B54) No. 13 — Chassis ground:
(B54) No. 2 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 2.Repair the short
circuit of harness
between TCM and
transmission con-
nector.
2CHECK ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the connectors to transmission
and TCM.
3) Turn the ignition switch to ON and start
engine.
4) Warm-up the transmission until the ATF
temperature reaches to 80°C (176°F).
NOTE:
If the ambient temperature is below 0°C (32°F),
drive the vehicle until the ATF reaches its oper-
ating temperature.
5) Disconnect the connector from transmis-
sion.
6) Measure the resistance between transmis-
sion connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
Is the resistance between 500
— 1,200 Ω?
Go to step 3.Go to step 5.
3CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission
connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
Does the resistance value
increase while the ATF temper-
ature decreases?
Go to step 4.Go to step 5.
4CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connector.
2) Turn the ignition switch to ON. (Engine
OFF)
3) Read the ATF temperature using Subaru
Select Monitor.
Does the ATF temperature
gradually decrease?
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 between
AT F t e m p e r a t u r e
sensor and trans-
mission connector.
Go to step 6.

5AT(diag)-40
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion.
3) Remove the transmission connector from
bracket.
4) Lift-up the vehicle and place it on rigid
racks.
NOTE:Raise all wheels off floor.
5) Drain the ATF.
CAUTION:Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between chassis
ground and control valve body connector.
Connector & terminal
(T5) No. 1 — Chassis ground:
(T5) No. 16 — Chassis ground:
Is the resistance more than 1
MΩ?
Replace the con-
trol valve body.
Control Valve
Body.>
Repair the short
circuit of harness
between transmis-
sion connector
and control valve
body connector.
6CHECK POOR CONTACT.Is there poor contact in ATF
temperature sensor 1 circuit?
Repair the poor
contact.
Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
Step Check Yes No

5AT(diag)-41
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
D: DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT
DTC DETECTING CONDITION:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
•Excessive shift shock
•Does not shift to 5th
WIRING DIAGRAM:
AT-02074
12341011 121920 21135614 1578916 17 1822 23 24
AT 1
123
12345678
B54
B55
12789563410 11 1219 20 2113 14 15 16 17 18222324
B11
B12
125678
131415169101112
34
17181920
B54A:B55B:
A16
7B11
T4
B12
T3
TCM
TURBINE SPEED SENSOR 1
B16
7
E
B:
A:
321AT1

5AT(diag)-42
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 connector and transmission
connector.
Connector & terminal
(B55) No. 16 — (B12) No. 7:
(B54) No. 16 — (B11) No. 7:
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 TRANSMISSION.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 16 — Chassis ground:
(B54) No. 16 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 3.Repair the short
circuit of harness
between TCM and
chassis ground.
3CHECK TCM POWER SUPPLY OUTPUT.
1) Connect the TCM connector. (Transmission
connector is disconnected)
2) Turn the ignition switch to ON. (Engine
OFF)
3) Measure the voltage between TCM con-
nector and chassis ground.
Connector & terminal
(B54) No. 16 (+) — Chassis ground (–):
Is the voltage 10 — 13 V? Go to step 4.Go to step 5.
4CHECK TURBINE SPEED SENSOR INPUT
CIRCUIT OF TCM.
Measure the voltage between TCM connector
terminals.
Connector & terminal
(B55) No. 16 (+) — (B54) No. 19 (–):
Is the voltage 4 — 6 V? Go to step 6.Go to step 5.
5CHECK TCM I/O SIGNAL.
Check I/O signal of power supply, ground and
PVIGN power supply relay.
CATION, Transmission Control Module (TCM)
I/O Signal.>
Is TCM I/O signal OK? Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
for PVIGN power
supply relay.
6CHECK HARNESS ASSEMBLY (TURBINE
SPEED SENSOR GROUND).
Check the installing condition of ground con-
necting harness of harness assembly (used for
both of turbine speed sensor 1, rear vehicle
speed sensor).
Is the ground connecting har-
ness installed securely to the
transmission body? Is there
any serious damage in the har-
ness and terminal?
Go to step 7.When poor instal-
lation of ground
occurs, install it
securely. Replace
the transmission
assembly if the
harness or termi-
nal is damaged.
Automatic Trans-
mission Assem-
bly.>

5AT(diag)-43
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7CHECK HARNESS ASSEMBLY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion.
3) Disconnect the connector from turbine
speed sensor 1.
4) Measure the resistance between transmis-
sion connector and turbine speed sensor 1
connector.
Connector & terminal
(T4) No. 7 — (AT1) No. 3:
(T3) No. 7 — (AT1) No. 2:
(AT1) No. 1 — Chassis ground:
Is the resistance less than 1
Ω?
Go to step 8.Repair the open
circuit of harness
between TCM and
transmission con-
nector, or poor
contact of connec-
tor.
8CHECK HARNESS ASSEMBLY.
Measure the resistance between transmission
connector and chassis ground.
Connector & terminal
(T4) No. 7 — Chassis ground:
(T3) No. 7 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 9.Repair the short
circuit of harness
between TCM and
transmission con-
nector.
9CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all the connectors.
2) Lift-up the vehicle and support with rigid
racks.
NOTE:Raise all wheels off floor.
3) Start the engine, and set the vehicle in 4th
speed driving condition of manual mode.
NOTE:Turbine speed sensor 1 signal can be mea-
sured only on 4th speed.
4) Read the current data of turbine speed sen-
sor 1 using the Subaru Select Monitor. 5AT(diag)-15, READ CURRENT DATA, OPER-
AT I O N , S u b a r u S e l e c t M o n i t o r . >
NOTE:The speed difference between front and rear
wheels may light the ABS warning light, but this
indicates no malfunction. When AT control di-
agnosis is finished, perform the VDC memory
clearance procedure of on-board diagnostics
system. Mode.>
Does the value of the turbine
speed sensor 1 change
depending on the acceleration,
deceleration and shifting range
of the vehicle?
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 between
AT F t e m p e r a t u r e
sensor and trans-
mission connector.
Replace the tur-
bine speed sensor
1. Tu r b i n e S p e e d
Sensor 1.>
Step Check Yes No

5AT(diag)-44
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
E: DTC P0719 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT LOW
DTC DETECTING CONDITION:
Brake switch malfunction, open input signal circuit
TROUBLE SYMPTOM:
Brake down control is not operated at SPORT mode.
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)-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.