2009 SUBARU TRIBECA ac 25 procedure

OD(diag)-26
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
14.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC 2A OCCUPANT DETECTION CALIBRATION FAILURE
DTC DETECTING CONDITION:
System calibration (Rezeroing) was not completed normally.
B: DTC 2B ODS ERRONEOUS PARTS
DTC DETECTING CONDITION:
•Wrong airbag control module is installed.
•Wrong occupant detection system is installed.
Step Check Yes No
1PERFORM RE-ZEROING.
Perfor m the system calibration using Subar u
Select Monitor. TION, Subaru Select Monitor.>
Is the system calibration com-
pleted normally?
Finish the diagno-
sis.
Follow the system
calibration proce-
dures. OD(diag)-18,
OPERATION,
Subaru Select
Monitor.>
Step Check Yes No
1CHECK THE OCCUPANT DETECTION SYS-
TEM.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Replace the passenger’s seat frame
assembly. Seat.> Seat.>
3) Connect the ground cable to battery.
4) Connect Subaru Select Monitor to the vehi-
cle and perform the system calibration. to OD(diag)-18, OPERATION, Subaru Select
Monitor.>
Is the system calibration com-
pleted normally?
Finish the diagno-
sis.
Go to step 2.
2CHECK AIRBAG CONTROL SYSTEM.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Replace the airbag control module. AB-17, REMOVAL, Side Airbag Module.>
3) Connect the ground cable to battery.
4) Connect Subaru Select Monitor to the vehi-
cle and perform the system calibration. to OD(diag)-18, OPERATION, Subaru Select
Monitor.>
Is the system calibration com-
pleted normally?
Finish the diagno-
sis.
Check between
the occupant
detection control
module and air-
bag control mod-
ule.

OD(diag)-27
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
C: DTC 2C BELT TENSION SENSOR FAILURE
DTC DETECTING CONDITION:
•Passenger's seat belt tension sensor is faulty.
•Airbag main harness circuit is open or shorted.
•Occupant detection control module is faulty.
WIRING DIAGRAM:
OD-00022
GOr
FB-47F/B FUSE No.25 (IG)
TO POWER SUPPLY ROUTING
OCCUPANT SENSINGCONTROL MODULE
BELT TENSION SENSOR
3
R
R
5
LW
W
6
LR
RB
4
LY
BW
123
WRBBW
AB61
AB59
AB56
123456
AB61(GRAY)
AB56(BROWN)
123
2
GOr
R
AB55
AB57
Step Check Yes No
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the occupant detection control mod-
ule and belt tension sensor.
Is there poor contact? Reconnect the
connector. If the
fault is not fixed,
replace the airbag
harness.
Go to step 2.
2CHECK THE BELT TENSION SENSOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the belt tension sensor connec-
tor (AB56) from the airbag harness.
3) Connect the test harness AC to the con-
nector (AB56).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for approximately 6
seconds and go off?
Replace the seat
belt outer. SB-10, REMOVAL,
Front Seat Belt.>
Go to step 3.

OD(diag)-28
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
D: DTC 27 ODS COMMUNICATION ERROR
Perform the diagnosis following diagnostic procedure for airbag system. COMMUNICATION ERROR, Diagnostic Chart with Trouble Code.>
3 CHECK THE AIRBAG HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the test harness AC from the
belt tension sensor connector (AB56).
3) Connect the test harness AD (1AD) to the
connector (AB56).
4) Disconnect the airbag harness connector
(AB61), and connect the connector (1AB) in
test harness AB.
5) Measure the resistance between test har-
ness terminals.
Connector & terminal
(2AB) No. 5 — (2AD) No. 1:
(2AB) No. 4 — (2AD) No. 3:
(2AB) No. 6 — (2AD) No. 2:
Is the resistance less than 10
Ω?
Go to step 4.Replace the airbag
harness with chas-
sis harness.
4 CHECK THE AIRBAG HARNESS.
Measure the resistance between test harness
terminals, and between test harness terminal
and chassis ground.
Connector & terminal
(2AB) No. 4 — (2AD) No. 1:
(2AB) No. 4 — (2AD) No. 2:
(2AB) No. 4 — chassis ground:
(2AB) No. 5 — (2AD) No. 2:
(2AB) No. 5 — chassis ground:
Is the resistance more than 1
MΩ?
Go to step 5.Replace the airbag
harness with chas-
sis harness.
5 CHECK THE AIRBAG HARNESS.
1) Connect the battery ground terminal and
turn the ignition switch to ON.
2) Measure the voltage between test harness
and chassis ground.
Connector & terminal
(2AD) No. 1 — chassis ground:
(2AD) No. 3 — chassis ground:
Is the voltage less than 1 V? Replace the airbag
harness with chas-
sis harness.
Check the seat
harness, and if any
fault is found,
replace the seat
harness. If no fault
is found in the seat
harness, replace
the seat cushion
frame assembly.
DISASSEMBLY,
Fr o nt S ea t . >
Step Check Yes No

OD(diag)-29
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
E: DTC 29 ODS FAILURE
DTC DETECTING CONDITION:
•Occupant detection sensor is faulty.
•Occupant detection control module is faulty.
•Occupant detection harness is faulty.
•Rear airbag harness is faulty.
•Fuse No. 25 (in joint box) is blown.
Step Check Yes No
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the occupant detection control mod-
ule and airbag control module.
Is there poor contact? Reconnect the
connector. If the
fault is not fixed,
replace the airbag
harness.
Go to step 2.
2 CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
READ DIAGNOSTIC TROUBLE CODE (DTC)
FOR THE AIRBAG SYSTEM.
Is “2C Belt Tension Sensor fail-
ure or 37 Buckle Switch failure”
displayed in the diagnostics
code?
Pe r for m t h e d ia g -
nosis according to
each DTC.
Check the seat
harness, and if any
fault is found,
replace the seat
harness. If the
fault is not fixed,
replace the occu-
pant detection sys-
tem. 10, DISASSEM-
BLY, Front Seat.>

OD(diag)-30
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
F: DTC 37 BUCKLE SWITCH RH FAILURE
DTC DETECTING CONDITION:
•Passenger's seat buckle switch circuit is open, shorted or shorted to ground.
•Seat harness circuit is open, shorted or shorted to ground.
•Occupant detection control module is faulty.
WIRING DIAGRAM:
OD-00024
AB60
12
OCCUPANT SENSINGCONTROL MODULE
RONT SEAT BELT SWITCH RH
12
WBr
AB60
Step Check Yes No
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the occupant detection control mod-
ule and buckle switch.
Is there poor contact? Reconnect the
connector. If the
fault is not fixed,
replace the airbag
harness.
Go to step 2.
2 CHECK THE BUCKLE SWITCH.
1) Turn the ignition switch to OFF, disconnect
the battery ground terminal, and wait for 20
seconds.
2) Disconnect the buckle switch connector
(AB60).
3) Connect the test harness AE1 and test har-
ness connector Y to the buckle switch connec-
tor (AB60).
4) 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
buckle switch.
REMOVAL, Front
Seat Belt.>
Check the seat
harness, and if any
fault is found,
replace the seat
harness. If the
fault is not fixed,
replace the occu-
pant detection sys-
tem.

SB-6
Pretensioner Connector
SEAT BELT SYSTEM
2. Pretensioner Connector
A: PROCEDURE
Refer to air bag connectors in the airbag section.

SE-10
Front Seat
SEATS
19) Remove the hooks (A), and then remove the
seat cushion from seat cushion frame.
20) Remove the hog rings (A), and then remove the
seat cushion cover from seat cushion pad.
21) Remove the hooks and hog rings at the bottom
of headrest, and then remove the headrest cover
from headrest.
2. PASSENGER’S SEAT
CAUTION:
•If the seat cushion cover is removed or re-
placed, make sure to perform passenger detec-
tion system adjustment after installing the seat
to the vehicle. CALIBRATION (REZEROING), OPERATION,
Subaru Select Monitor.>
Failure to do so may cause improper activation
of passenger’s airbag.
•The passenger detection system (passenger
seat only) control unit, passenger detection
sensor, seat cushion pad and seat cushion
frame are considered as a single seat cushion
pad and frame assembly. Never remove the
passenger detection control unit or the pres-
sure sensor from the seat cushion frame.
•If the seat cushion cover is removed, make
sure to replace the wire on the seat cushion
side with a new wire.
1) Remove the seat from vehicle. PASSENGER’S SEAT, REMOVAL, Front Seat.>
2) Refer to the disassembly procedures for the driv-
er’s seat.
NOTE:
The back side of the seat cushion is affixed by a
hook (A) and hog ring (B).
D: ASSEMBLY
CAUTION:
When the backrest cover is not installed se-
curely, the side airbag module may not be de-
ployed properly, therefore keep strictly to the
following procedure.
•Be careful not to stain or damage the back-
rest cover during assembly.
•The back rest cover of the side airbag module
are to be tightened and fixed together with the
attachment nuts for the side airbag module as-
sembly.
•Always use new hog rings.
•Secure the hog ring using hog ring pliers.
•Install the hog rings to the specified points
securely and make sure that no wrinkle or twist-
ing on backrest cover.
1. DRIVER’S SEAT
NOTE:
•When installing the inner seat belt assembly, fol-
low the procedure described in the seat belt sec-
tion. ASSEMBLY, INSTALLATION, Front Seat Belt.>
•Install the backrest assembly and seat cushion
assembly in the following procedure.
SE-00391
(A)
(A)
SE-00591: (A)
SE-00342
(A)
(A)
SE-00642: (B)

SE-11
Front Seat
SEATS
1) Temporarily tighten the four reclining hinge
bolts.
2) Place the backrest in the most upright position.
3) Tighten the reclining hinge bolts in the order of
(1) through (4), in two or three steps by gradually in-
creasing the torque until they reach the specified
torque.
4) Assemble in the reverse order of disassembly.
2. PASSENGER’S SEAT
CAUTION:
Make sure to adhere to the following rules when
assembling the passenger seat. Improper work
procedures can cause the passenger detection
system to not operate properly.
•If the seat cushion cover is removed or re-
placed, make sure to perform passenger detec-
tion system adjustment after installing the seat
to the vehicle. CALIBRATION (REZEROING), OPERATION,
Subaru Select Monitor.>
Failure to do so may cause improper activation
of passenger’s airbag.
•The passenger detection system (passenger
seat only) control unit, passenger detection
sensor, seat cushion pad and seat cushion
frame are considered as a single seat cushion
pad and frame assembly. Never remove the
passenger detection control unit or the pres-
sure sensor from the seat cushion frame.
•If the seat cushion cover is removed, make
sure to replace the wire on the seat cushion
side with a new wire.
•Make sure to install the hog rings/clips to the
specified locations. Do not reuse hog rings.
Assemble in the reverse order of disassembly.
1) Assemble the seat cushion in the reverse order
of disassembly.
2) Assemble the backrest in the reverse order of
disassembly.
3) When assembling the backrest assembly to the
seat cushion assembly, fill up the gap in the front
side of slide rail LH and in the rear side of slide rail
RH using cloth etc.
4) Temporarily tighten the reclining hinge bolts in
the order of (1) through (4), to an extent that the
seat back assembly is not locked.
5) Hold the seat cushion assembly securely, and
tighten the reclining hinge bolts in the order de-
scribed above until they reach the specified torque.
CAUTION:
Do not touch the backrest assembly when tight-
ening the reclining hinge bolts.
6) Assemble each harness, inner belt assembly
and each cover in the reverse order of removal.
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”. Description.>
E: INSPECTION
Check that no tear or fray on the backrest cover
and seat cushion cover.
CAUTION:
If there are tears or looseness in the back rest
cover or seat cushion covers, do not attempt to
repair. Replace with a new cover. Repairing the
cover may cause improper operation of the side
airbag or the passenger detection system.
(A) Vehicle inside
(B) Vehicle outside
(A)
(B)
(2)
(4)
(3)
(1)
SE-00514
(A) Vehicle inside
(B) Vehicle outside
SE-00537
(A)
(B)
(2)
(4)
(3)
(1)
SE-00538