Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 614
AB-23
Side Airbag Sensor
AIRBAG SYSTEM
10.Side Airbag Sensor
A: REMOVAL
1) Turn the ignition switch to OFF.
2) Disconnect the ground cable from battery and
wait for at least 60 seconds before starting work.
3) Remove the front outer seat belt. <Ref. to SB-18,
OUTER SEAT BELT ASSEMBLY, REMOVAL,
4) Remove the nuts and then remove the side air-
bag sensor.
CAUTION:
• Do not separate the side airbag sensor and
bracket. It cause the airbag system malfunc-
tion.
• If the sensor is removed from the bracket, be
sure to replace with a new part.
5) Disconnect the airbag connector.
B: INSTALLATION
CAUTION:
Do not reuse the bolt and nut.
Always replace with the specified new bolts
and nuts.
Install each part in the reverse order of removal.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
C: INSPECTION
Check for the following, and replace the damaged
parts with new parts.
• The bracket or connector of side airbag sensor is
damaged.
• Side airbag has been activated.
AB-01835
AB-24
Curtain Airbag Sensor
AIRBAG SYSTEM
11.Curtain Airbag Sensor
A: REMOVAL
1) Turn the ignition switch to OFF.
2) Disconnect the ground cable from battery and
wait for at least 60 seconds before starting work.
3) Remove the rear seat. <Ref. to SE-13, REMOV-
4) Remove the nuts and then remove the curtain
airbag sensor.
5) Disconnect the airbag connector.
B: INSTALLATION
CAUTION:
• Do not reuse the bolt and nut.
Always use new bolts and nuts for them.
• When installing the sensor, insert the set pin
on the backside of the sensor into the hole on
the body side securely.
Install in the reverse order of removal.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
C: INSPECTION
Check for the following, and replace the damaged
parts with new parts.
• Curtain airbag sensor or connector is damaged.
• Curtain airbag has been activated.
AB-01754
AB-25
Satellite Safing Sensor
AIRBAG SYSTEM
12.Satellite Safing Sensor
A: REMOVAL
1) Turn the ignition switch to OFF.
2) Disconnect the ground cable from battery and
wait for at least 60 seconds before starting work.
3) Remove the rear seat cushion. <Ref. to SE-13,
4) Remove the satellite safing sensor cover.
5) Remove the nut, and remove the satellite safing
sensor.
CAUTION:
• Do not separate the satellite safing sensor
and bracket. It cause the airbag system mal-
function.
• If the sensor is removed from the bracket, be
sure to replace with a new part.
6) Disconnect the airbag connector.
B: INSTALLATION
CAUTION:
• Do not reuse the bolt and nut.
Always replace with the specified new bolts
and nuts.
• When installing the satellite safing sensor
cover, push the cover securely until it contacts
the floor panel.
• If the satellite safing sensor cover is too
loose at its mounting portion to remove easily,
replace with a new satellite safing sensor cov-
er.
• After installing the satellite safing sensor
cover, make sure that the sensor harness does
not get caught.
Install each part in the reverse order of removal.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
C: INSPECTION
Check for the following, and replace the damaged
parts with new parts.
• Mounting bracket or connector of satellite safing
sensor is damaged.
• The satellite safing sensor cover is damaged
• Side airbag or curtain airbag has been activated.
AB-01847
AB-01846
AB-26
Roll Connector
AIRBAG SYSTEM
13.Roll Connector
A: REMOVAL
1) Turn the ignition switch to OFF.
2) Disconnect the ground cable from battery and
wait for at least 60 seconds before starting work.
3) Remove the driver’s airbag module. <Ref. to AB-
4) Remove the steering wheel. <Ref. to PS-13, RE-
5) Remove the steering column cover.
6) Disconnect the airbag connector next to the
steering shaft. <Ref. to AB-8, DRIVER’S AIRBAG
MODULE (BETWEEN AIRBAG MAIN HARNESS
AND ROLL CONNECTOR) AND PASSENGER’S
AIRBAG MODULE, PROCEDURE, Airbag Con-
7) Remove the screws, and then remove the roll
connector.
B: INSTALLATION
1) Install each part in the reverse order of removal.
2) Before installing steering wheel, be sure to ad-
just the direction of roll connector with steering.
<Ref. to AB-27, ADJUSTMENT, Roll Connector.>
C: INSPECTION
1. VISUAL INSPECTION
Check for the following, and replace the damaged
parts with new parts.
• Combination switch is cracked or deformed.
• Roll connector is cracked or deformed.
2. UNIT INSPECTION OF ROLL CONNEC-
TOR
CAUTION:
• Do not rotate the roll connector to more than
the specified number of turns. Otherwise, the
roll connector internal wire may be broken.
• When determining the end stop, rotate the
connector slowly without applying excessive
force. Applying excessive force at the end stop
may break the internal wire.
1) Adjust the roll connector. <Ref. to AB-27, AD-
2) Set the roll connector to the central position.
3) Connect the test harness to the airbag module
connectors (black) and (orange).
PREPARATION TOOL:
Test harness N (98299SA000)
Test harness Q (98299SA040)
Airbag module connector (black) — Test harness
(1N)
Airbag module connector (orange) — Test harness
(1Q)
4) With the following conditions, check the resis-
tance between the test harness connector termi-
nals.
• Perform the check with the roll connector cen-
tered (front wheels direct straightforward).
• Rotate the roll connector counterclockwise from
the center (front wheels direct straightforward) to
an end stop. Then, perform the check while rotating
it clockwise to approximately 3.25 turns.
Preparation tool: Circuit tester
NOTE:
Terminals are designed to be shorted as the con-
nection between airbag main harness and roll con-
nector is disconnected.
5) Replace the roll connector with a new part if the
inspection result is not within the standard value.
AB-02077
Terminal No.
Inspection conditions
Standard value
(2N) No. 1
and
(2N) No. 2
Always
Less than 1 Ω
(2Q) No. 1
and
(2Q) No. 2
Always
Less than 1 Ω
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