Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 617

AB(diag)-7

General Description

AIRBAG SYSTEM (DIAGNOSTICS)

• When storing a removed airbag module, do not place it with the pad side facing downward. Do not place

any objects on the airbag module. Do not pile up the airbag module. If the airbag inflates for some reason

when an airbag module pad is touching other objects, it may cause serious accident.

B: INSPECTION

Measure the battery voltage and check electrolyte.
Standard voltage: 12 V
Specific gravity: 1.260 or more

(1)

Driver’s airbag module

(2)

Passenger’s airbag module

AB-01543

(1)

(2)

OK

OK

NG

NG

NG
NG

AB(diag)-8

General Description

AIRBAG SYSTEM (DIAGNOSTICS)

C: PREPARATION TOOL

CAUTION:

To measure the voltage and resistance of airbag system component, be sure to use the specified test

harness.

1. SPECIAL TOOL

• TEST HARNESS H

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

1B022XU0

SUBARU SELECT
MONITOR III KIT

Used for troubleshooting the electrical system.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

98299FA030

TEST HARNESS H

Used when measuring voltage and resistance of
front sub sensor and satellite safing sensor.

ST1B022XU0

3H

2H

1H

ST98299FA030

AB-00720

3H

3H

2H

1H

2H

1H

4

3

6

5

1
3 4 5 6

2

1

1

2

2

2

1

2 1

AB(diag)-9

General Description

AIRBAG SYSTEM (DIAGNOSTICS)

• TEST HARNESS N

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

98299SA000

TEST HARNESS N

Used when measuring voltage and resistance of
driver’s airbag module, seat belt pretensioner
and curtain airbag module.

2N

1N

ST98299SA000

AB-00928

2N

1N

1

2

2

1

1

2

2

1

1N

2N

AB(diag)-10

General Description

AIRBAG SYSTEM (DIAGNOSTICS)

• TEST HARNESS P

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

98299SA020

TEST HARNESS P

Used when measuring voltage and resistance of
driver’s airbag module and passenger’s airbag
module.

ST98299SA020

1P

2P

3P

AB-00679

1P

2P

3P

4

1

2

4

3

3

2

1

4

1

2

3

4

3

1

2