ignition SUBARU TRIBECA 2009 1.G Service Workshop Manual

5AT(diag)-121
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK UP/DOWN SWITCH.
1) Move the select lever to manual mode.
2) Shift and hold the select lever to up side.
3) Read the “Up Switch” data of TCM using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is ON displayed? Go to step 2.Go to step 3.
2CHECK UP/DOWN SWITCH.
1) Move the select lever to manual mode.
2) Shift and hold the select lever to down side.
3) Read the “Down Switch” data of TCM using
Subaru Select Monitor. OPERATION, Subaru Select Monitor.>
Is ON displayed? Go to the proce-
dure for “CHECK
RANGE POSI-
TION/GEAR
POSITION INDI-
CATOR LIGHT”.
124, CHECK
RANGE POSI-
TION/GEAR
POSITION INDI-
CATOR LIGHT,
Diagnostic Proce-
dure without Diag-
nostic Trouble
Code (DTC).>
Go to step 12.
3CHECK THE BODY INTEGRATED UNIT.
1) Turn the ignition switch to ON.
2) Shift and hold the select lever to up side.
3) Read the “TIP UP SW” data of body inte-
grated unit using Subaru Select Monitor.
Is ON displayed? Go to step 4.Go to step 5.
4CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Is DTC of CAN communication
displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Check the TCM.
5CHECK UP/DOWN SWITCH GROUND CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the up/down
switch.
3) Measure the resistance of harness
between the up/down switch connector and
chassis ground.
Connector & terminal
(B116) No. 11— Chassis ground:
Is the resistance less than 1
Ω?
Go to step 6.Repair the open
circuit of harness
between the up/
down switch con-
nector and chassis
ground.

6CHECK UP/DOWN SWITCH.
Measure the up/down switch resistance.
Connector & terminal
(B116) No. 10 — No. 11:
Is the resistance more than 1
MΩ?
Go to step 7.Replace the guide
plate assembly.
7CHECK UP/DOWN SWITCH.
1) Shift and hold the select lever to up side.
2) Measure the up/down switch resistance.
Connector & terminal
(B116) No. 10 — No. 11:
Is the resistance less than 1
Ω?
Go to step 8.Replace the guide
plate assembly.
8CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND UP/DOWN
SWITCH.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance of the harness
between body integrated unit and up/down
switch connector.
Connector & terminal
(B116) No. 10 — (B281) No. 25:
(B116) No. 9 — (B281) No. 15:
Is the resistance less than 1
Ω?
Go to step 9.Repair the open
circuit of harness
between the up/
down switch con-
nector and body
integrated unit
connector, or poor
contact of connec-
tor.

5AT(diag)-122
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
9CHECK INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Connect all the connectors.
2) Turn the ignition switch to ON (Engine
OFF).
3) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 25 — Chassis ground:
Is the voltage 1.5 — 8 V? Go to step 11.Go to step 10.
10 CHECK INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Hold the select lever to the up side.
2) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 25 — Chassis ground:
Is the voltage less than 1V? Go to step 20.Replace the body
integrated unit.
11 CHECK THE BODY INTEGRATED UNIT.
1) Turn the ignition switch to ON.
2) Shift and hold the select lever to down side.
3) Read the “TIP DOWN SW” data of body
integrated unit using Subaru Select Monitor.
Is ON displayed? Go to step 12.Go to step 13.
12 CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Is DTC of CAN communication
displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Check the TCM.
13 CHECK UP/DOWN SWITCH GROUND CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the up/down
switch.
3) Measure the resistance of harness
between the up/down switch connector and
chassis ground.
Connector & terminal
(B116) No. 9 — Chassis ground:
Is the resistance less than 1
Ω?
Go to step 14.Repair the open
circuit of harness
between the up/
down switch and
chassis ground.
14 CHECK UP/DOWN SWITCH.
Measure the up/down switch terminal resis-
tance.
Connector & terminal
(B116) No. 11 — No. 9:
Is the resistance more than 1
MΩ?
Go to step 15.Replace the guide
plate assembly.
15 CHECK UP/DOWN SWITCH.
1) Shift and hold the select lever to down side.
2) Measure the up/down switch terminal resis-
tance.
Connector & terminal
(B116) No. 11 — No. 9:
Is the resistance less than 1
Ω?
Go to step 16.Replace the guide
plate assembly.
16 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND UP/DOWN
SWITCH.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance of the harness
between body integrated unit and up/down
switch connector.
Connector & terminal
(B116) No. 11 — (B281) No. 15:
Is the resistance less than 1
Ω?
Go to step 17.Repair the open
circuit of harness
between the up/
down switch con-
nector and body
integrated unit
connector, or poor
contact of connec-
tor.
Step Check Yes No

5AT(diag)-123
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
17 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND UP/DOWN
SWITCH.
Measure the resistance of harness connector
between the up/down switch and chassis
ground.
Connector & terminal
(B116) No. 9 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 18.Repair the short
circuit of the har-
ness between the
up/down switch
connector and
TCM connector.
18 CHECK INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Connect all the connectors.
2) Turn the ignition switch to ON (engine
OFF).
3) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 15 — Chassis ground:
Is the voltage 1.5 — 8 V? Go to step 19.Go to step 20.
19 CHECK INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Shift and hold the select lever to down side.
2) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 15 — Chassis ground:
Is the voltage less than 1 V? Go to step 20.Replace the body
integrated unit.
Body Integrated
Unit.>
20 CHECK POOR CONTACT.Is there poor contact in the up/
down switch circuit?
Repair the poor
contact.
A temporary poor
contact of the up/
down switch cir-
cuit connector or
harness
Step Check Yes No

5AT(diag)-124
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
B: CHECK RANGE POSITION/GEAR POSITION INDICATOR LIGHT
DIAGNOSIS:
Output signal circuit of the range position/gear position indicator light is open or shorted.
TROUBLE SYMPTOM:
•Range position/gear position indicator light does not illuminate or remains illuminated.
•Cannot understand range position/gear position indicator light display.
WIRING DIAGRAM:
AT-03290
34
2930
COMBINATIONMETER
i10
A27A26
B20B30
BODY INTEGRATED UNIT
i84A:
B280B:
43
TCMB54
BATTERY
MAIN SBF SBF-6 NO.5
E
IGNITIONSWITCH
i84
8765432122232120191615141312111093435333217301831292827262524
A:
B54
12789563410 11 1219 20 2113 14 15 16 17 18222324
B280
87654321
2223212019161514131211109173018292827262524
B:
i10
123456789101112131415161718192021222324252627282930
RANGE POSITION/GEAR POSITIONINDICATOR

5AT(diag)-125
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Is DTC of AT CAN communica-
tion circuit displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 2.
2CHECK TCM.
Check DTC of TCM.
Is DTC of AT CAN communica-
tion circuit displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 3.
3CHECK TCM.
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) Shift the select lever to manual mode side,
and then shift down the select lever.
6) Read the indicator.
Is gear position 1 and “ ” dis-
played?
Go to step 4.Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
4CHECK TCM.
1) Shift up the select lever.
2) Read the indicator.
Is the gear position 2, and is
“” displayed?
Go to step 5.Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
5CHECK THE BODY INTEGRATED UNIT.
Read the data of gear position using Subaru
Select Monitor.
Is SPORT shift gear position
2?
Go to step 6.Check the body
integrated unit.
Body Integrated
Unit.>
6CHECK COMBINATION METER.Is the range position/gear posi-
tion indicator light normal?
Refer to “Symptom
Related Diagnos-
tic”. 5AT(diag)-128,
General Diagnos-
tic Table.>
Replace the com-
bination meter
assembly. IDI-11, Combina-
tion Meter.>

5AT(diag)-126
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
C: CHECK BUZZER
DIAGNOSIS:
Output signal circuit of buzzer is open or shorted.
TROUBLE SYMPTOM:
Buzzer remains beeping.
WIRING DIAGRAM:
34
2122
AT-02940
17
COMBINATIONMETER
JOINT CONNECTOR
i77
i10
i84A:B280B:
28
A27A26
B20B30
43
TCMB54
BODY INTEGRATED UNIT
SPORTSHIFTBUZZER
i10
i77
i84
B280
21346789102221201918171615141312115
121110987654321
8765432122232120191615141312111093435333217301831292827262524
87654321
2223212019161514131211109173018292827262524
BATTERY
SBF-1 SBF-7
IGNITION SWITCH
NO.12
EA:
B:
B54
12789563410 11 1219 20 2113 14 15 16 17 18222324

5AT(diag)-127
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step Check Yes No
1CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Is DTC of CAN communication
displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 2.
2CHECK TCM.
Check DTC of TCM.
Is DTC of CAN communication
displayed?
Pe r for m t h e d ia g -
nosis according to
DTC.
Go to step 3.
3CHECK BUZZER STOP.
Disconnect the connector (B54).
Does the buzzer stop? Replace the TCM.
Tr a n s m i s s i o n C o n -
trol Module
(TCM).>
Go to step 4.
4CHECK 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 SPORT shift buzzer using
Subaru Select Monitor.
Is the SPORT shift buzzer dis-
play “ON”?
Replace the body
integrated unit.
Body Integrated
Unit.>
Go to step 5.
5CHECK COMBINATION METER.Is the buzzer OK? Refer to “Symptom
Related Diagnos-
tic”. 5AT(diag)-128,
General Diagnos-
tic Table.>
Replace the com-
bination meter
assembly. IDI-11, Combina-
tion Meter.>

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-8
AT Shift Lock Control System
CONTROL SYSTEMS
C: WIRING DIAGRAM
(1) Ignition switch (4) Body integrated unit (7) Shift lock solenoid
(2) Stop light switch (5) TCM (“P” range) (8) “P” range switch
(3) Key warning switch (6) Key lock solenoid (9) Battery
CS-00363
OFFACCON
(1)
(2)
(3)
(4)
(9)
(6)
(7)
(8)
(5)

CS-9
AT Shift Lock Control System
CONTROL SYSTEMS
D: INSPECTION
1. SHIFT LOCK OPERATION
Step Check Yes No
1CHECK SHIFT LOCK.
1) Turn the ignition switch to ON.
2) Shift the select lever to “P” range.
While brake pedal is not
depressed, is it possible to
move the select lever from the
“P” range to other ranges?
Inspect “SELECT
LEVER CANNOT
BE SHIFT
LOCKED”. to CS-12, SELECT
LEVER CANNOT
BE SHIFTED,
INSPECTION, AT
Shift Lock Control
System.>
Go to step 2.
2CHECK SHIFT LOCK.While brake pedal is
depressed, is it possible to
move the select lever from the
“P” range to other ranges?
Go to step 3.Inspect “SELECT
LEVER SHIFT
LOCK CANNOT
BE RELEASED”.
SHIFT LOCK OF
SELECT LEVER
CANNOT BE
RELEASED.,
INSPECTION, AT
Shift Lock Control
System.>
3CHECK KEY INTERLOCK.Can the ignition switch be
turned to the “LOCK” position
when the select lever is set to
other than “P” range?
Go to step 4.Go to step 5.
4CHECK BACKUP POWER SUPPLY.
Inspect the backup power supply circuit. to CS-10, BODY INTEGRATED UNIT POWER
SUPPLY AND GROUND CIRCUIT, INSPEC-
TION, AT Shift Lock Control System.>
Is the backup power supply cir-
cuit operating properly?
Inspect for “KEY
INTERLOCK
CANNOT BE
LOCKED OR
RELEASED”.
SHIFT LOCK OF
SELECT LEVER
CANNOT BE
RELEASED.,
INSPECTION, AT
Shift Lock Control
System.>
Repair the backup
power supply cir-
cuit.
5CHECK KEY INTERLOCK.Can the ignition switch be
turned to the LOCK position
when the select lever is set to
the “P” range?
AT s h i f t l o c k s y s -
tem is normal.
Inspect for “KEY
INTERLOCK
CANNOT BE
LOCKED OR
RELEASED”.
SHIFT LOCK OF
SELECT LEVER
CANNOT BE
RELEASED.,
INSPECTION, AT
Shift Lock Control
System.>