Subaru Legacy (2005 year). 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