Subaru Legacy (2005 year). Manual - part 891

 

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Subaru Legacy (2005 year). Manual - part 891

 

 

AB(diag)-2

AIRBAG SYSTEM (DIAGNOSTICS)

Basic Diagnostic Procedure

1. Basic Diagnostic Procedure

A: PROCEDURE

Step

Check

Yes

No

1

READ DTC.
<Ref. to AB(diag)-30, Read Diagnostic Trouble 
Code (DTC).>

Is the normal code detected?

Finish the diagno-
sis.

Go to step 2.

2

READ DTC.
<Ref. to AB(diag)-30, Read Diagnostic Trouble 
Code (DTC).>

Is DTC displayed?

Go to step 3.

Go to “Airbag 
Warning Light Fail-
ure” <Ref. to 
AB(diag)-34, Air-
bag Warning Light 
Failure.>.

3

PERFORM THE DIAGNOSIS.
1) Judge the possible cause from “List of 
Diagnostic Trouble Code” <Ref. to AB(diag)-
38, List of Diagnostic Trouble Code (DTC).>
.
2) Inspect the DTC using “List of Diagnostic 
Trouble Code (DTC)”.
3) Repair the trouble cause.
4) Perform the clear memory mode. <Ref. to 
AB(diag)-33, Clear Memory Mode.>
5) Perform the inspection mode. <Ref. to 
AB(diag)-32, Inspection Mode.>
6) Read any DTC again.

Is DTC displayed?

Perform the proce-
dure 1) to 5) in 
step 3.

Finish the diagno-
sis.

AB(diag)-3

AIRBAG SYSTEM (DIAGNOSTICS)

Check List for Interview

2. Check List for Interview

A: CHECK

Customer’s Name

Inspector’s Name

Date Vehicle Brought In

/

/

Registration No.

Odometer Reading

km

miles

V.I.N.

Date Problem Occurred

/

/

Registration Year

/

/

Weather

❏ Fine 

❏ Cloudy 

❏ Rainy 

❏ Snowy 

❏ Others:

Temperature

°C (°F)

Road Condition

❏ Level road

❏ Uphill 

❏ Downhill 

❏ Rough road 

❏ Others:

Vehicle Operation

❏ Starting

❏ Idling

❏ Driving (❏ Constant speed

❏ Acceleration

❏ Deceleration

❏ Steering wheel turn

❏ Others:

)

Details of Problem

Check Airbag Warning Light

❏ Normal (After turning the ignition switch to ON, illuminates for 6 seconds then goes off.)

❏ Remains ON

❏ Remains OFF

DTC output

❏ Normal Code

❏ DTC: (Code: 

)

AB(diag)-4

AIRBAG SYSTEM (DIAGNOSTICS)

General Description

3. General Description

A: CAUTION

• When servicing a vehicle, be sure to turn the ig-
nition switch to OFF, disconnect the ground cable
from battery, and wait for more than 20 seconds
before starting work.
• The airbag system is equipped with a backup
power source. If the airbag system is serviced with-
in 20 seconds from the ground cable is disconnect-
ed, it may inflate.
• If sensors, airbag module, airbag control module,
pretensioner and harness are deformed or dam-
aged, replace them with new parts.

• Do not use the airbag system and pretensioners
on other vehicles. When replacing parts, be sure to
replace them with new ones.
• When checking the airbag system, be sure to
use a digital circuit tester. Use of an analog circuit
tester may cause the airbag to activate erroneous-
ly.

• When checking, use a test harness (1). Do not
directly apply the tester probe to any connector ter-
minal of the airbag because damage on the con-
nector cause malfunction.

• Do not drop the airbag module, subject them to
high temperature over 93

°C (199°F), or let water,

oil or grease get on them; the internal parts may be
damaged and reliability greatly lowered.

AB-00120

AB-00121

AB-00122

(1)

AB-00123

 

 

 

 

 

 

 

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