Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 709
SE-5
General Description
SEATS
B: CAUTION
justment after installing the seat to the vehicle. <Ref. to OD(diag)-14, SYSTEM CALIBRATION (REZERO-
ING), OPERATION, Subaru Select Monitor.>
If system adjustment is not performed, the occupant detection system may not function properly.
• The passenger detection system (passenger seat only) control unit and the passenger detection sensor
are fixed to the seat cushion frame. Never remove the passenger detection control unit or the pressure sen-
sor from the seat cushion frame.
• Do not replace the seat cushion pad by itself. Always replace the seat cushion pad and frame assembly
as a set. The seat cushion pad and cushion frame are adjusted as a set at the time of manufacture. If cushion
pads and cushion frames are combined from those of other vehicles or other sets, the passenger detection
system may not operate properly.
• If the seat cushion cover is removed, make sure to replace the hang wire on the seat cushion side with a
new wire.
C: PREPARATION TOOL
1. GENERAL TOOL
TOOL NAME
REMARKS
Long nose plier
Used for removing the hog ring.
Hog ring pliers
Used for installing the hog ring.
TORX
®
T50
Used for removing and installing the inner seat belt assembly.
Circuit tester
Used for measuring resistance and voltage.
SE-6
Front Seat
SEATS
2. Front Seat
A: REMOVAL
CAUTION:
The airbag system is fitted with a backup power
supply. After disconnecting the battery ground
cable, the airbag may operate if you do not wait
for 60 seconds before starting the service of
airbag system.
1. DRIVER’S SEAT
1) Disconnect the ground cable from battery, and
wait for 60 seconds or more before starting work.
2) Remove the slide rail installing bolt.
(1) Tilt the backrest forward and move the seat
to the front most position.
(2) Remove the rear bolt cover at the rear side
of the slide rail and remove the bolt.
(3) Move the seat to the rearmost position, and
remove the bolt on the front side of the slide rail.
3) Disconnect the connector under the seat.
CAUTION:
Disconnect the ground cable from battery, and
wait 60 seconds before disconnecting the con-
nector.
• Seat belt buckle switch connector
• Side airbag connector
• Seat heater connector (model with seat heater)
4) Remove the front seat from vehicle.
2. PASSENGER’S SEAT
CAUTION:
Refer to “CAUTION” of “General Description”
for “AIRBAG SYSTEM” section before starting
the work. <Ref. to SE-5, CAUTION, General De-
1) Disconnect the ground cable from battery, and
wait for 60 seconds or more before starting work.
2) Tilt the backrest forward, and move the seat for-
ward.
3) Remove the rear bolt cover, and then remove
the rear side of slide rail.
4) Move the seat backward, remove the front bolt
cover, and then remove the bolt at the front side of
slide rail.
5) Disconnect all the connectors of connector hold-
er in the backside of seat cushion.
• Harness connector of occupant detection control
module
• Side airbag connector
• Seat heater connector (model with seat heater)
6) Remove the seat from vehicle.
B: INSTALLATION
Install each part in the reverse order of removal.
NOTE:
Tighten the slide rail installing bolt gradually in sev-
eral steps to the specified torque in the order as
shown in the figure.
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”. <Ref. to SE-2, FRONT SEAT LH, COM-
C: DISASSEMBLY
1) Remove the seat from vehicle. <Ref. to SE-6,
2) Remove the seat lifter cover using a flat tip
screwdriver and loosen the inner bolt to remove the
seat lifter lever.
3) Disengage the tab on the backside while pulling
the reclining lever, and remove the reclining lever
cover.
(1)
(2)
(3)
(4)
SE-00704
SE-00290
SE-00877
SE-7
Front Seat
SEATS
4) Remove screws (A) and clips (B), and then de-
tach the seat side cover outside.
5) Remove the TORX
®
bolt, and then remove the
inner seat belt assembly.
6) Remove the screws and detach the seat side
cover inside.
7) Remove the bolts from reclining hinge of both
sides.
8) Remove the plastic fastener at the back side
(bottom) of backrest.
9) Open the fastener at the rear side of backrest.
SE-00405
(A)
(A)
(B)
(B)
SE-00407
SE-00884
SE-00408
SE-00300
SE-00804
SE-8
Front Seat
SEATS
10) Remove the hog rings of backrest cover.
CAUTION:
Be careful not to tear the vinyl inside the seat
when removing the hog rings.
If torn, replace with a new part.
11) Remove the pad (A), and remove the mounting
nut from the side airbag module.
12) Remove the fastener (a) at the backrest hole.
13) Pull out the backrest frame.
14) Remove all the hog rings at front of seat back,
and then remove the seat back cover from seat
backrest.
15) Remove the plastic hooks (A) of the seat cush-
ion cover, and then remove the seat cushion frame
assembly.
16) Remove all the hog rings, and then remove the
seat cushion cover from seat cushion pad.
17) Remove the bolts on the side of seat cushion
assembly, and then remove the slide rail.
CAUTION:
Do not reuse the removed bolts because they
are coated with the thread lock material. Always
use new bolts during assembly.
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. <Ref. to OD(diag)-14, SYSTEM
CALIBRATION (REZEROING), OPERATION,
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 hang wire on the seat cush-
ion side with a new wire.
1) Remove the seat from vehicle. <Ref. to SE-6,
PASSENGER’S SEAT, REMOVAL, Front Seat.>
SE-00794
(A)
SE-00796
SE-01227
(a)
SE-00338
(A)
SE-00882
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