Subaru Legacy (2005 year). Service manual — part 897
AB(diag)-25
AIRBAG SYSTEM (DIAGNOSTICS)
Airbag Control Module I/O Signal
B: WIRING DIAGRAM
*1:
Model with side airbag
*2:
Model with lap seat belt pretensioner
*3:
Model with curtain airbag
AB-01087
Drive circuit
Drive circuit
CPU
Comm
unication circuit
Airbag control module
Driver’s airbag
module
1st stage
inflator
2nd
stage
inflator
Passenger’s airbag
module
1st stage
inflator
2nd
stage
inflator
Steering roll connector
Seat belt
pretensioner
(RH)
Seat belt
pretensioner
(LH)
Ignition switch
Battery
Safing sensor
Backup
condenser
G sensor
G sensor
Front sub sensor (RH)
G sensor
Front sub sensor (LH)
CPU
Side airbag sensor
(RH)
Safing sensor
G
sensor
Side airbag sensor
(LH)
Safing sensor
CPU
G
sensor
Curtain airbag sensor
(RH)*
3
Safing sensor
CPU
G
sensor
Curtain airbag sensor
(LH)*
3
Safing sensor
CPU
G
sensor
Lap seat belt
pretensioner*
2
Side
airbag
module
(RH)
Side
airbag
module
(LH)
Curtain
airbag
module
(RH)*
3
Curtain
airbag
module
(LH)*
3
*
1
*
1
*
1
*
1
AB(diag)-26
AIRBAG SYSTEM (DIAGNOSTICS)
Airbag Connector
6. Airbag Connector
A: PROCEDURE
1. POWER SUPPLY
1) How to disconnect:
(1) Move the slide lock (A) in the direction of ar-
row.
(2) While holding the slide lock (A) in moved po-
sition, separate the connector.
CAUTION:
When pulling the slide lock or disconnecting
the connector, be sure to hold the connector,
not the harness.
2) How to connect:
Holding the connector (A), and push it in securely
until a connecting sound is heard.
CAUTION:
Be sure to insert the connector in until it is
locked. Pull it gently to make sure that it is
locked securely.
2. DRIVER’S AIRBAG MODULE AND PRE-
TENSIONER
1) How to disconnect:
(1) Using a flat tip screwdriver, pry the push
lock upward to unlock.
(2) Pull the connector to disconnect from driv-
er’s side airbag module assembly or retractor
assembly.
2) How to connect:
Connect the connector in the reverse order of dis-
connecting. At this time, be sure to insert the push
lock until a connecting sound is heard.
CAUTION:
• Be sure to insert the connector in until it is
locked. Pull it gently to make sure that it is
locked securely.
• Be sure to push the push lock in securely.
NOTE:
The connector can not be connected when the
push lock is in lock position. To connect the con-
nector, set the push lock to unlock position.
AB-00721
(A)
AB-00016
AB-00478
AB-00479
AB-00480
AB(diag)-27
AIRBAG SYSTEM (DIAGNOSTICS)
Airbag Connector
3. DRIVER’S AIRBAG (BETWEEN AIRBAG
MAIN HARNESS AND ROLL CONNECTOR)
AND PASSENGER’S AIRBAG
1) How to disconnect:
(1) Push the slide lock (A) into the direction of
arrow.
(2) With the slide lock pushed, disconnect the
connector.
CAUTION:
When pulling the slide lock or disconnecting
the connector, be sure to hold the connector,
not the harness.
2) How to connect:
Holding the connector, push it in securely until a
connecting sound is heard.
CAUTION:
Be sure to insert the connector in until it is
locked. Pull it gently to make sure that it is
locked securely.
4. SIDE AIRBAG AND CURTAIN AIRBAG
1) How to disconnect:
(1) Push the lock arm (A).
(2) With the lock arm (A) pushed in, move the
slide lock (B) in the direction of arrow.
(3) With the slide lock moved, release the lock
arm (back to the original position), and discon-
nect the connector.
CAUTION:
When pulling the slide lock or disconnecting
the connector, be sure to hold the connector,
not the harness.
AB-00722
(A)
AB-00022
AB-00023
AB-00017
(A)
(B)
AB-00018
AB(diag)-28
AIRBAG SYSTEM (DIAGNOSTICS)
Airbag Connector
5. FRONT SUB-SENSOR, SIDE AIRBAG
SENSOR AND CURTAIN AIRBAG SENSOR
1) How to disconnect:
Holding outer part (A), pull it in the direction of ar-
row.
CAUTION:
When pulling the slide lock or disconnecting
the connector, be sure to hold the connector,
not the harness.
2) How to connect:
Holding the connector, push it in securely until a
connecting sound is heard.
CAUTION:
• Outer side (A) move back, and so do not put
your hand on the outer part.
• Be sure to insert the connector in until it is
locked. Pull it gently to make sure that it is
locked securely.
AB-00024
AB-00025
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