SUBARU LEGACY 1996 Service Repair Manual

B5M0105
6) Using TORX®BIT T40 (Tamper resistant type), remove
two TORX®bolts.
Discard the old TORX®bolts.
CAUTION:
Use new TORX
®bolts during re-assembly.
B: INSTALLATION
Installation is in reverse order of removal procedures.
CAUTION:
Be sure to fully secure all airbag system connectors
during re-assembly and confirm that all green double
lock mechanisms are engaged.
7. Combination Switch
A: REMOVAL
1) Turn ignition switch off.
2) Disconnect ground cable from battery and wait for at
least 20 seconds before starting work.
G5M0312
3) Remove lower cover. <Ref. to 5-4 [W1A0].> Disconnect
airbag connector (AB3) and (AB8) below steering column.
CAUTION:
Do not reconnect airbag connector at steering column
until combination switch is securely re-installed.
4) Disconnect combination switch connectors from body
harness connector.
H5M0662A
5) Set front wheels in straight ahead position. Using
TORX®BIT T30, remove two TORX®bolts.
18
5-5SERVICE PROCEDURE
6. Airbag Control Module - 7. Combination Switch

H5M0664
6) Disconnect airbag connector on back of airbag module.
<Ref. to 5-5 [M2-6].> Remove airbag module, and place it
with pad side facing upward. <Ref. to 5-5 [W300].>
G5M0332
7) Using steering puller, remove steering wheel.
CAUTION:
Do not allow connector to interfere when removing
steering wheel.
B5M0106
8) Remove steering column covers.
9) Removing two retaining screws, remove combination
switch.
B: ADJUSTMENT
1. CENTERING ROLL CONNECTOR
Before installing steering wheel, make sure to center roll
connector built into combination switch.
1) Make sure that front wheels are positioned straight
ahead.
2) Install steering gearbox, steering shaft and combination
switch properly. Turn roll connector pin

1clockwise until
it stops.
H5M0663A
3) Then, back off roll connector pin
1approximately 2.65
turns until“”marks aligned.
19
5-5SERVICE PROCEDURE
7. Combination Switch

H5M0663A
C: INSTALLATION
1) Before installing combination switch, check to ensure
that combination switch is off and front wheels are set in
the straight ahead position.
CAUTION:
Failure to do this might damage roll connector.
2) Install column cover and center roll connector.
3) Install steering wheel in neutral position. Carefully insert
roll connector pin

1into hole on steering wheel.
NOTE:
If steering wheel angle requires fine adjustment, adjust tie-
rod. <Ref. to 4-3 [W3F0].>
4) Install airbag module and lower cover in the reverse
order of removal.
20
5-5SERVICE PROCEDURE
7. Combination Switch

1. SRS Airbag
1. LHD MODEL
B5M0399A

1Combination switch ASSY with roll connector


2TORX®bolt


3Airbag module ASSY (Driver)


4Airbag module ASSY (Passenger)


5BRKT B


6BRKT P AB


7BRKT SD A


8TORX®bolt


9Airbag control module


10Protector RH


11Protector LH


12Airbag main harness
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 1.8±0.5 (0.18±0.05, 1.3±0.4)
T2: 2.5±0.5 (0.25±0.05, 1.8±0.4)
T3: 4.4±1.5 (0.45±0.15, 3.3±1.1)
T4: 7.4±0.5 (0.75±0.05, 5.4±0.4)
T5: 10±2 (1.0±0.2, 7.2±1.4)
T6: 32±10 (3.3±1.0, 23.9±7.2)
2
5-5bCOMPONENT PARTS
1. SRS Airbag

2. RHD MODEL
B5M0434A

1Combination switch ASSY with roll connector


2TORX®bolt


3Airbag module ASSY (Driver)


4Airbag module ASSY (Passenger)


5BRKT B


6BRKT P AB


7BRKT SD A


8TORX®bolt


9Airbag control module


10Protector RH


11Protector LH


12Airbag main harness
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 1.8±0.5 (0.18±0.05, 1.3±0.4)
T2: 2.5±0.5 (0.25±0.05, 1.8±0.4)
T3: 4.4±1.5 (0.45±0.15, 3.3±1.1)
T4: 7.4±0.5 (0.75±0.05, 5.4±0.4)
T5: 10±2 (1.0±0.2, 7.2±1.4)
T6: 32±10 (3.3±1.0, 23.9±7.2)
3
5-5bCOMPONENT PARTS
1. SRS Airbag

G5M0291
1. Precaution
1) If any of the airbag system parts such as sensors, air-
bag module, airbag control module and harness are dam-
aged or deformed, replace with new genuine parts.
G5M0292
2) When servicing, be sure to turn the ignition switch off,
disconnect the negative () battery terminal then the posi-
tive (+) terminal in advance, and wait for more than 20
seconds before starting work.
G5M0293
3) When checking the system, be sure to use a digital cir-
cuit tester. Use of an analog circuit tester may cause the
airbag to activate erroneously. Do not directly apply the
tester probe to any connector terminal of the airbag. When
checking, use a test harness.
G5M0294
4
5-5bSERVICE PROCEDURE
1. Precaution

G5M0295
4) Do not drop the airbag modulator parts, subject it to
high temperatures over 90°C (194°F), or apply oil, grease,
or water to it; otherwise, the internal parts may be damaged
and its reliability greatly lowered.
G5M0296
5) If any damage or open is found on the SRS airbag sys-
tem wire harness, do not attempt to repair using soldering,
etc. Be sure to replace the faulty harness with a new genu-
ine part.
G5M0297
6) Install the wire harness securely with the specified clips
so as to avoid interference or jamming with other parts.
7) Before connecting the airbag system to ground, make
sure that the grounding terminal is free from paint and
contamination.
5
5-5bSERVICE PROCEDURE
1. Precaution

G5M0298
8) Do not allow water or oil to come in contact with the
connector terminals. Do not touch the connector terminals.
9) When connecting or disconnecting airbag connector,
make sure ignition switch is OFF.
2. Inspection and Replacement
Standards
1. VEHICLES WHICH BECOME INVOLVED IN A
COLLISION
If the vehicle equipped with an SRS airbag system is
damaged in a collision, the airbag system parts must
be checked and replaced in accordance with the fol-
lowing standards:
After faulty parts are replaced, the warning light opera-
tion must be checked.
When the ignition switch is turned ON, it lights up
for 8 seconds and then it goes out for at least 30 sec-
onds.
The trouble code stored in memory must be erased
after the check.
2. AIRBAG MODULE (DRIVER AND PASSENGER)
Inspection standard:
The vehicle damaged in a collision (regardless of
whether or not airbag is deployed).
The designated trouble code is output during self-diag-
nosis. (Refer to“Diagnostics”Section.)
Replacement standard:
Airbag is deployed.
The pad surface is scratched or cracked.
Harness and/or connector is deformed or cracked, their
circuits are broken, lead wire is exposed, etc.
Mounting bracket is cracked or deformed.
The module surface is fouled with foreign matter.
(grease, oil, water, cleaning solvent, etc.)
Airbag module dropped to the floor/ground.
Airbag module determined as faulty during self-diagno-
sis.
6
5-5bSERVICE PROCEDURE
1. Precaution - 2. Inspection and Replacement Standards

G5M0298
8) Do not allow water or oil to come in contact with the
connector terminals. Do not touch the connector terminals.
9) When connecting or disconnecting airbag connector,
make sure ignition switch is OFF.
2. Inspection and Replacement
Standards
1. VEHICLES WHICH BECOME INVOLVED IN A
COLLISION
If the vehicle equipped with an SRS airbag system is
damaged in a collision, the airbag system parts must
be checked and replaced in accordance with the fol-
lowing standards:
After faulty parts are replaced, the warning light opera-
tion must be checked.
When the ignition switch is turned ON, it lights up
for 8 seconds and then it goes out for at least 30 sec-
onds.
The trouble code stored in memory must be erased
after the check.
2. AIRBAG MODULE (DRIVER AND PASSENGER)
Inspection standard:
The vehicle damaged in a collision (regardless of
whether or not airbag is deployed).
The designated trouble code is output during self-diag-
nosis. (Refer to“Diagnostics”Section.)
Replacement standard:
Airbag is deployed.
The pad surface is scratched or cracked.
Harness and/or connector is deformed or cracked, their
circuits are broken, lead wire is exposed, etc.
Mounting bracket is cracked or deformed.
The module surface is fouled with foreign matter.
(grease, oil, water, cleaning solvent, etc.)
Airbag module dropped to the floor/ground.
Airbag module determined as faulty during self-diagno-
sis.
6
5-5bSERVICE PROCEDURE
1. Precaution - 2. Inspection and Replacement Standards

G5M0311
3. FRONT SENSOR
Inspection standard:
Check the front section (Refer to shaded area of vehicle
in figure) for damage, regardless of whether or not airbag
is deployed.
Check whether or not the designated trouble code is
output during self-diagnosis. (Refer to“Diagnostics”Sec-
tion.)
Replacement standard:
Bracket is deformed.
Housing is cracked or deformed.
The label (that identifies the manufacturing number) is
peeled or deteriorated.
Harness circuit is broken, lead wire is exposed, corru-
gated tube is cracked, etc.
Front sensor determined as faulty as a result of Diag-
nostics.
Airbag is deployed.
Front sensor dropped to the floor/ground.
4. MAIN HARNESS
Inspection standard:
A vehicle damaged in a collision (regardless of whether
or not airbag is deployed).
The designated trouble code is output during self-diag-
nosis. (Refer to“Diagnostics”Section.)
Replacement standard:
Harness circuit is broken, lead wire is exposed, corru-
gated tube is cracked, etc.
Connector is scratched or cracked.
The designated trouble code is output during self-diag-
nosis.
5. AIRBAG CONTROL MODULE
Inspection standard:
A vehicle damaged in a collision (regardless of whether
or not airbag is deployed).
The designated trouble code is output during self-diag-
nosis. (Refer to“Diagnostics”Section.)
Replacement standard:
Control module is cracked or deformed.
Mounting bracket is cracked or deformed.
Connector is scratched or cracked.
Control module dropped to the floor/ground.
Control module determined as faulty during diagnostics.
Airbag is deployed.
7
5-5bSERVICE PROCEDURE
2. Inspection and Replacement Standards