1997 SUBARU LEGACY remove

E: DIAGNOSTICS PROCEDURE
1. AIRBAG WARNING LIGHT STAYS ON AFTER
ABOUT 7 SECONDS.
1) Perform on-board diagnostic.
2) Are trouble codes 4, 12, 13, 22, 34, 41, 42 or 43 indi-
cated?
Record trouble codes. If“YES”proceed to step 4). If“NO”
proceed to step 3).
3) Proceed with diagnostics and repair according to
trouble code indicated then perform step 15).
4) If codes 4, 22, 34, 42 are indicated, proceed to step 5).
If codes 4, 22, 34, 42 are not indicated, proceed to step
10).
5) If codes 12, 13, 41, 43 are indicated, proceed to step 6).
If codes 12, 13, 41, 43 are not indicated, proceed to step
11).
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6) Turn ignition switch“OFF”, disconnect battery ground
cable, and wait 20 seconds. Disconnect passenger side
airbag module connector (AB9) to (AB10). [W3A2].> Connect test harness C connector (1C) to (AB9).
Connect airbag resistor to test harness C connector (3C).
Remove lower cover panel and connect test harness C
connector (1C) to (AB8) with airbag
resistor attached to test harness C connector (3C).
Connect battery ground cable and turn ignition switch
“ON”. Does airbag warning light go“OFF”after about 7
seconds and remain off for more than 30 seconds?
See“NOTE:”.
If“YES”proceed to step 7).
If“NO”proceed to step 3).
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7) Turn ignition switch“OFF”, disconnect battery ground
cable, and wait 20 seconds. Connect passenger side air-
bag module connector (AB9) to (AB10). Connect battery
ground cable and turn ignition switch“ON”. Does airbag
warning light go“OFF”after about 7 seconds and remain
off for more than 30 seconds?
See“NOTE:”.
If“YES”proceed to step 8).
If“NO”proceed to step 13).
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
4. Diagnostics Chart for On-board Diagnostic System

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8) Turn ignition switch“OFF”, disconnect battery ground
cable, and wait 20 seconds. Connect connector (AB8) to
(AB3). Remove driver side airbag module and connect test
harness C connector (1C) to (AB7).
Connect airbag resistor to test harness C connector (3C).
Connect battery ground cable and turn ignition switch
“ON”. Does airbag warning light go“OFF”after about 7
seconds and remain off for more than 30 seconds?
See“NOTE:”.
If“YES”proceed to step 9).
If“NO”proceed to step 14).
9) Turn ignition switch“OFF”, disconnect battery ground
cable, and wait 20 seconds. Replace with a new driver side
airbag module. Proceed to step
15).
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10) Turn ignition switch“OFF”, disconnect battery ground
cable, and wait 20 seconds. Remove lower cover panel
and connect test harness C connector (1C) to (AB8) to 5-4 [W1A0].> with airbag resistor attached to test har-
ness C connector (3C).
Connect battery ground cable and turn ignition switch
“ON”. Does airbag warning light go“OFF”after about 7
seconds and remain off for more than 30 seconds?
See“NOTE:”.
If“YES”proceed to step 8).
If“NO”proceed to step 3).
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
4. Diagnostics Chart for On-board Diagnostic System

5. Diagnostics Chart with Trouble Code

A: TROUBLE CODE 04
DIAGNOSIS:
Airbag main harness circuit is shorted.
Airbag module harness (Passenger) circuit is shorted.
Airbag control module is faulty.
1. Airbag main harness inspection
CAUTION:
Before performing diagnostics on airbag system, turn
ignition switch “OFF”, disconnect battery ground
cable and then wait at least 20 seconds.
After 20 seconds elapse, remove instrument panel
lower cover, and disconnect (AB3) and (AB8), (AB9)
and (AB10).
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1. AIRBAG MAIN HARNESS INSPECTION
1) Disconnect connector (AB6) from airbag control module
, and connect it to test harness B2
connector (8B).
2) Measure resistance between test harness B2 connec-
tor (5B) terminal.
: Connector & terminal
(5B) No. 6 — (5B) No. 7:
Is resistance more than 10 kΩ?
: Replace airbag control module.
: Replace airbag main harness.
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code

B: TROUBLE CODE 11
DIAGNOSIS:
Airbag control module is faulty.
Airbag main harness circuit is open.
Fuse No. 8 is blown.
Body harness circuit is open.
1. Airbag control module inspection
2. Airbag main harness inspection
3. Fuse No. 8 inspection
CAUTION:
Before performing diagnostics on airbag system, turn
ignition switch“OFF”, disconnect battery ground
cable and then wait at least 20 seconds.
After 20 seconds elapse, remove instrument panel
lower cover, and disconnect (AB3) and (AB8), (AB9)
and (AB10).
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1. AIRBAG CONTROL MODULE INSPECTION
1) Disconnect connector (AB6) from airbag control module
and connect it to test harness B2
connector (8B).
2) Connect battery ground cable and turn ignition switch
“ON”. (engine off)
3) Measure voltage across connector (5B) terminal and
chassis ground.
: Connector & terminal
(5B) No. 2 (+)—Chassis ground ():
Is voltage more than 10 V?
: Replace airbag control module.
: Go to step2.


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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code

2. AIRBAG MAIN HARNESS INSPECTION
1) Go to step 2) below after performing diagnostics on air-
bag system as per diagnosis procedure under“1. AIRBAG
CONTROL MODULE INSPECTION”previously outlined.
2) Turn ignition switch“OFF”, disconnect battery ground
terminal and then wait at least 20 seconds.
B5M0119B
3) Disconnect body harness connector (B31) from connec-
tor (AB1) at front lower pillar, and connect connector (AB1)
to test harness A connector (2A).
4) Measure resistance between test harness A connector
(5A) terminal and test harness B2 connector (5B) terminal.
: Connector & terminal
(5A) No. 1—(5B) No. 2:
Is resistance less than 10Ω?
: Go to step 5).
: Replace airbag main harness.
5) Measure resistance between (5A) and (5B) connector
terminals and chassis ground.
: Connector & terminal
(5A) No. 1 (+)—Chassis ground ():
Is resistance more than 10 kΩ?
: Go to next.
: Replace airbag main harness.
: Connector & terminal
(5B) No. 2 (+)—Chassis ground ():
Is resistance more than 10 kΩ?
: Go to step3.
: Replace airbag main harness.
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3. FUSE No. 8 INSPECTION
1) Turn ignition switch“OFF”, and remove airbag fuse pro-
tector.
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code

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2) Remove and visually check fuse No. 8.
: Is fuse No. 8 blown?
: Replace fuse No. 8 if fuse No. 8 blows again,
repair body harness.
: Repair body harness.
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code

C: TROUBLE CODE 12
DIAGNOSIS:
Airbag main harness circuit is open.
Airbag module harness (Driver) circuit is open.
Roll connector circuit is open.
Airbag control module is faulty.
1. Airbag main harness inspection
CAUTION:
Before performing diagnostics on airbag system, turn
ignition switch“OFF”, disconnect battery ground
cable and then wait at least 20 seconds.
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1. AIRBAG MAIN HARNESS INSPECTION
1) Remove lower cover panel , and
connect connector (AB8) below steering column to test
harness C connector (1C).
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2) Disconnect connector (AB6)
from airbag control module, and connect it to test harness
B2 connector (8B) terminal.
3) Measure resistance between test harness B2 connec-
tor (5B) and test harness C connector (3C) terminals.
: Connector & terminal
(5B) No. 14—(3C) No. 4:
Is resistance less than 10Ω?
: Go to next.
: Replace airbag main harness.
: Connector & terminal
(5B) No. 1—(3C) No. 3:
Is resistance less than 10Ω?
: Replace airbag control module.
: Replace airbag main harness.
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code

D: TROUBLE CODE 13
DIAGNOSIS:
Airbag main harness circuit is shorted.
Airbag module harness (Driver) is shorted.
Roll connector circuit is shorted.
Airbag control module is faulty.
1. Airbag main harness inspection
CAUTION:
Before performing diagnostics on airbag system, turn
ignition switch“OFF”, disconnect battery ground
cable and then wait at least 20 seconds.
After 20 seconds elapse, remove instrument panel
lower cover, and disconnect (AB3) and (AB8), (AB9)
and (AB10).
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1. AIRBAG MAIN HARNESS INSPECTION
1) Disconnect connector (AB6) from airbag control module
, and connect it to test harness B2
connector (8B).
2) Measure resistance between test harness B2 connec-
tor (5B) terminal.
: Connector & terminal
(5B) No. 1—(5B) No. 14:
Is resistance more than 10 kΩ?
: Replace airbag control module.
: Replace airbag main harness.
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5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code