2009 SUBARU TRIBECA ECO mode

AB(diag)-2
Basic Diagnostic Procedure
AIRBAG SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Check Yes No
1CHECK WARNING LIGHT.
Check whether the airbag warning light in the
combination meter is lit.
Does the airbag warning light
illuminate?
Go to step 2.Perform the diag-
nosis according to
phenomenon of
the problem.
2READ DTC.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON, and the Sub-
aru Select Monitor power switch to ON.
4) Read the DTC. OPERATION, Read Diagnostic Trouble Code
(DTC).>
NOTE:If the communication function of the Subaru Se-
lect Monitor cannot be executed normally,
check the communication circuit. AB(diag)-33, COMMUNICATION FOR INI-
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
5) Record all DTCs and freeze frame data.
Is DTC displayed? Go to step 3. 40, Airbag Warn-
ing Light Fail-
ure.>Go to “Airbag
Wa r ni n g L ig h t Fa i l-
ure”.
3PERFORM DIAGNOSIS.
1) Judge the possible cause from “List of
Diagnostic Trouble Code” 45, List of Diagnostic Trouble Code (DTC).>.
2) Inspect the DTC using “List of Diagnostic
Tr o u b l e C o d e ( D T C ) ” .
3) Repair the trouble cause.
4) Perform the clear memory mode. AB(diag)-38, Clear Memory Mode.>
5) Perform the inspection mode. AB(diag)-37, Inspection Mode.>
6) Read any other DTCs displayed.
Is DTC displayed? Perform the proce-
dure 1) to 5) in
step 3.
Finish the diagno-
sis.

AB(diag)-32
Subaru Select Monitor
AIRBAG SYSTEM (DIAGNOSTICS)
2. DISPLAY OF STATUS INFORMATION
Check the operating condition of each sensor in the event of malfunction in seat belt buckle switch and seat
position sensor, or when the seat belt buckle switch and seat position sensor has been replaced.
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 {Airbag System} and press the [YES] key.
3) On the «Airbag System» display screen, select the {Status Data} and press the [YES] key.
The following table is for support data.
*1: The seat position is forward.
*2: The seat position is rearward.
*3: Displayed when data other than before and behind the seat, such as the breakdown etc, is input.
*4: Displayed when it is initial.
*5: Seat position sensor not supported
*6. Seat belt fastened
*7. Seat belt not fastened
*8: Displayed when data other than belt fastened or not fastened, such as breakdowns is input.
*9: Seat belt buckle switch not supported
*10: Passenger’s seat air bag operating state
*11: Passenger’s seat air bag non-operating state
NOTE:
For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MAN-
UAL”.
3. CLEAR MEMORY MODE
Clear the DTC stored in the airbag control module after repairing airbag system. (After the breakdown is re-
covered, the breakdown code for completed recoveries are read out when the next breakdown occurs if the
memory clear work is not performed.)
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 {Airbag System} and press the [YES] key.
3) On the {Airbag System} menu screen, select the {Clear Memory} and press the [YES] key.
4) When the “Clear Memory?” is shown on the screen, press the [YES] key.
5) When “Done” is displayed, turn the Subaru Select Monitor to OFF.
NOTE:
For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MAN-
UAL”.
Item Display contents
Seat position sensor LHFr o nt p os it i on *1/Rear position *2 /Other *3/Initial Setting *3 /–– *5
Seat position sensor RH–– *5
Seat belt buckle switch LHBelted *6/Unbelted *7 /Other *8/Initial Setting *4 /–– *9
Seat belt buckle switch RHBelted *6/Unbelted *7 /Other *8/Initial Setting *4 /–– *9
Passenger’s airbag control statusON *10/OFF *11 /Initial Setting *4

AB(diag)-34
Subaru Select Monitor
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK IGNITION SWITCH.Is the ignition switch ON? Go to step 2.Turn the ignition
switch to ON, and
select the airbag
mode using the
Subaru Select
Monitor.
2CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
Is the voltage more than 11 V? Go to step 3.Charge or replace
the battery.
3CHECK BATTERY TERMINAL.Is there poor contact at battery
terminal?
Repair or tighten
the battery termi-
nal.
Go to step 4.
4CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other system can
be executed normally.
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Go to step 9.Go to step 5.
5CHECK AIRBAG CONTROL MODULE CON-
NECTOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Is the connector of the air bag control mod-
ule (AB6) securely connected?
Is the connector of the air bag
control module securely con-
nected?
Go to step 6.Connect the con-
nector of the air-
bag control
module.
6CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to OFF.
2) Disconnect the airbag control module con-
nector.
3) Turn the ignition switch to ON.
4) Check whether communication to other
systems can be executed normally.
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Replace the airbag
control module.
Airbag Control
Module.>
Go to step 7.
7CHECK HARNESS CONNECTOR BETWEEN
EACH CONTROL MODULE AND DATA LINK
CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the airbag control module,
ABSCM&H/U, ECM and TCM.
3) Measure the resistance between data link
connector and chassis ground.
Connector & terminal
(B40) No. 10 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 8.Repair the har-
ness and connec-
tor between each
control module
and data link con-
nector. (Replace
the harness with-
out repairing the
airbag harness.)
8CHECK THE OUTPUT SIGNAL TO THE AIR-
BAG CONTROL MODULE.
1) Turn the ignition switch to ON in the status
of step 7.
2) Measure the voltage between data link con-
nector and chassis ground.
Connector & terminal
(B40) No. 10 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 9.Repair the har-
ness and connec-
tor between each
control module
and data link con-
nector. (Replace
the harness with-
out repairing the
airbag harness.)

AB(diag)-60
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module and the
passenger's airbag module.
Is there poor contact? Replace the airbag
harness with chas-
sis harness.
Go to step 2.
2CHECK PASSENGER'S AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the console side cover lower on
the passenger's side.
3) Disconnect the connector (AB10) from
(AB9).
4) Connect the connector (1P) in the test har-
ness P to connector (AB9).
5) Connect the airbag resistor to the connec-
tors (2P) and (3P) of test harness P.
6) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Replace the pas-
senger's airbag
module. AB-16, Passen-
ger’s Airbag Mod-
ule.>
Go to step 3.
3CHECK AIRBAG MAIN HARNESS (PASSEN-
GER'S AIRBAG HARNESS).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag resistor from the
connectors (2P) and (3P) of test harness P.
3) Remove the instrument panel lower cover
and disconnect the connector (AB7) from
(AB2).
4) Disconnect the connector (AB6) from air-
bag control module, and connect the connector
(1U) in the test harness U.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 3 (+) — Chassis ground (–):
(2U) No. 5 (+) — Chassis ground (–):
(2U) No. 9 (+) — Chassis ground (–):
(2U) No. 13 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 4.Replace the airbag
main harness with
body harness.
4CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 5.
5CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.

AB(diag)-61
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
E: DTC 21 AIRBAG ECU FAILURE
DTC DETECTING CONDITION:
Airbag control module is faulty.
CAUTION:
•Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground terminal from battery, and wait more than 20 seconds before starting to work.
•After replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, reconnect each part and confirm that the warning light operates properly.
Step Check Yes No
1CHECK IF DTC 21 IS INDICATED.
Read the DTC. DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Is DTC 21 indicated for airbag
warning light?
Replace the airbag
control module.
Airbag Control
Module.>
Per fo r m th e cl ea r
memory mode.
32, CLEAR MEM-
ORY MODE,
OPERATION,
Subaru Select
Monitor.>

AB(diag)-63
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
This DTC is indicated when the front airbag module and the pretensioner are deployed.
Once this DTC is displayed, the memory cannot be cleared. Therefore replace the following parts.
•Airbag control module
•Driver's airbag module
•Passenger's airbag module
•Front sub sensor of both sides
•Front seat belt outer with pretensioner of both sides.
•Steering roll connector
•Occupant detection system (passenger’s seat cushion & frame assembly)
G: DTC 23 CONNECTOR TO AIRBAG ECU FAILURE
DTC DETECTING CONDITION:
Connection of (AB6), (AB17) and (AB18) to airbag control module is improper.
CAUTION:
Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground terminal from battery, and wait more than 20 seconds before starting to work.
Step Check Yes No
1CHECK POOR CONTACTS OF CONNEC-
TORS (AB6), (AB17) AND (AB18).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connectors (AB6), (AB17)
and (AB18) from airbag control module.
Is there rust or damage on the
harness connector and the
control module connector?
Replace the airbag
control module.
Airbag Control
Module.> Replace
the body harness
with the airbag
main harness or
replace the body
harness with the
side airbag har-
ness.
Go to step 2.
2CHECK POOR CONTACTS OF CONNEC-
TORS (AB6), (AB17) AND (AB18).
1) Reconnect the connector securely.
2) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Go to step 3.Replace the airbag
control module.
Airbag Control
Module.>
3CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 4.
4CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.

AB(diag)-65
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB6) from air-
bag control module.
3) Connect the connector (1U) in the test har-
ness U to connector (AB6).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 1 (+) — Chassis ground (–):
Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 2.
2CHECK FUSE NO. 12 (IN JOINT BOX).
1) Confirm that the ignition switch is turned to
OFF.
2) Remove the fuse No. 12 (in joint box) and
perform visual inspection.
Is the fuse No. 12 blown out? Replace the fuse
No. 12. If fuse No.
25 is blown out
again, repair the
body harness.
Replace the airbag
main harness with
body harness.
Go to step 3.
3CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 4.
4CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.

AB(diag)-67
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB6) from air-
bag control module.
3) Connect the connector (1U) in the test har-
ness U to connector (AB6).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 6 (+) — Chassis ground (–):
Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 2.
2CHECK FUSE NO. 25 (IN JOINT BOX).
1) Confirm that the ignition switch is turned to
OFF.
2) Remove the fuse No. 25 (in joint box) and
perform visual inspection.
Is the fuse No. 25 blown out? Replace the fuse
No. 25. If fuse No.
12 is blown out
again, repair the
body harness. Or
replace the airbag
main harness with
body harness.
Go to step 3.
3CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Airbag Control
Module.>
Go to step 4.
4CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.