Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 609
AB-3
General Description
AIRBAG SYSTEM
1. DRIVER’S AIRBAG MODULE
Tightening torque:
10 N·m (1.02 kgf-m, 7.4 ft-lb)
2. PASSENGER’S AIRBAG MODULE
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
3. SIDE AIRBAG MODULE
Tightening torque:
6 N·m (0.61 kgf-m, 4.4 ft-lb)
4. CURTAIN AIRBAG MODULE
• 5 door model
• 4 door model
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
5. AIRBAG CONTROL MODULE
CAUTION:
Do not reuse mounting bolts and nuts.
Tightening torque:
25 N·m (2.55 kgf-m, 18.4 ft-lb)
AB-01883
T
T
AB-01884
T
AB-01885
T
(A) Bolt
AB-01904
AB-01890
AB-01886
(A)
T
AB-4
General Description
AIRBAG SYSTEM
6. FRONT SUB SENSOR
CAUTION:
Do not reuse mounting bolts and nuts.
Tightening torque:
13 N·m (1.33 kgf-m, 9.6 ft-lb)
7. SIDE AIRBAG SENSOR
CAUTION:
Do not reuse mounting bolts and nuts.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
8. CURTAIN AIRBAG SENSOR
CAUTION:
Do not reuse mounting bolts and nuts.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
9. SATELLITE SAFING SENSOR
CAUTION:
Do not reuse mounting bolts and nuts.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
10.STEERING ROLL CONNECTOR
11.AIRBAG HARNESS
(A) Bolt
(A) Nut
(A) Nut
AB-01826
T
(A)
T
AB-02029
T
(A)
AB-01748
(A)
T
(A) Nut
AB-01896
(A)
T
AB-02077
AB-01888
AB-5
General Description
AIRBAG SYSTEM
B: CAUTION
• When servicing a vehicle, be sure to turn the ig-
nition switch to OFF, disconnect the ground cable
from battery, and wait for 60 seconds or more be-
fore starting work.
• The airbag system is fitted with a backup power
supply. After disconnecting the battery ground ca-
ble, the airbag may operate if you do not wait for 60
seconds or more before starting the service of air-
bag system.
• If the airbag warning light illuminates, check or
repair the vehicle immediately to prevent it from air-
bag system malfunction.
• If any of the airbag sensors, airbag module, air-
bag control module, pretensioner, harness or satel-
lite safing sensor cover is deformed or damaged,
replace with new parts.
• When checking the airbag system, be sure to
use a digital circuit tester. Use of an analog circuit
tester may cause the airbag to activate erroneously
due to a minimal current inside tester.
• When checking, use a test harness (1). Damage
to connector terminal causes malfunction. Do not
directly put the tester probe on airbag connector
terminal.
• Do not allow water or oil to come in contact with
the connector terminals. Also, do not touch the con-
nector terminals.
• Do not check continuity of the airbag modules for
driver’s side, passenger’s side and curtain, or the
pretensioner.
IN-00203
NG
N
N
NG
NG
N
N
NG
G
G
G
G
N
N
N
N
N
NG
G
G
G
G
N
N
N
N
N
N
N
N
N
N
N
NG
AB-01534
NG
NG
NG
NG
NG
NG
N
NG
N
OK
OK
OK
OK
K
O
OK
O
AB-01535
AB-01536
(1)
NG
NG
G
G
G
G
G
G
N
N
N
NG
G
G
G
G
G
G
G
G
NG
G
N
N
N
NG
G
G
G
G
G
G
G
G
NG
K
K
K
K
K
K
K
OK
OK
OK
OK
K
K
K
O
O
O
O
O
O
O
O
O
O
OK
K
K
K
K
K
K
K
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
OK
O
O
O
O
O
O
O
O
OK
O
O
O
O
O
O
O
O
O
O
O
O
O
O
OK
O
OK
OK
OK
K
OK
K
K
K
K
O
AB-01540
G
G
NG
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
NG
N
N
N
N
N
N
N
N
N
N
N
NG
N
N
N
N
N
N
N
N
N
G
N
N
N
NG
G
G
G
G
NG
NG
NG
NG
N
N
NG
G
NG
NG
NG
NG
NG
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NG
G
N
N
N
NG
NG
G
G
G
G
G
N
N
NG
G
G
N
NG
G
NG
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
AB-01537
AB-6
General Description
AIRBAG SYSTEM
• If damage, open circuit or rust is found on airbag
system wiring harness, do not use a soldering
equipment to repair. Replace the faulty harness
with a new genuine part.
• Install the wiring harness securely with the spec-
ified clips to avoid interference or tangled with other
parts.
• When painting or performing sheet metal work
on the front part of the vehicle, including the front
wheel apron, front fender and front side frame, re-
move the front sub sensors and wiring harness of
airbag system.
• When painting or performing sheet metal work
on the side of the vehicle including the side sill, cen-
ter pillar and front and rear doors, or on the rear
floor pan or around the rear crossmember, remove
the side airbag sensors, curtain airbag sensor, sat-
ellite safing sensor and wiring harness of the airbag
system.
• Do not use the airbag or pretensioner parts from
other vehicles. Always replace the defective parts
with new parts.
• Never reuse any activated airbag module and
pretensioner.
• Do not discard undeployed airbag or pretension-
er.
• When airbag control module, front sub sensor,
side airbag sensor, curtain airbag sensor and sat-
ellite safing sensor are removed, do not reuse the
bolts and nuts of them. Always replace with the
specified new bolts and nuts.
• Do not drop each airbag module, airbag control
module and each sensor, or store these parts un-
der high temperature of 85°C (185°F) or more, or
let water, oil or grease get on them; the internal
parts may be damaged or the reliability may be de-
creased.
• After removing each parts of the airbag system,
keep them with the pad side facing upward on a
dry, clean and flat surface away from heat, light
sources, moisture and dust.
NG
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
NG
G
N
NG
G
N
N
N
G
N
N
N
N
N
N
N
N
N
N
N
N
NG
G
G
G
AB-01539
AB-00125
AB-01542
NG
N
NG
N
N
N
N
N
N
N
N
NG
G
G
G
G
G
G
G
G
NG
G
NG
G
G
G
G
NG
G
G
N
N
N
N
NG
G
G
G
G
G
G
N
N
N
AB-01538
NG
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
N
N
N
N
NG
NG
N
N
N
AB-00056
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