Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 621

AB(diag)-23

Airbag Connector

AIRBAG SYSTEM (DIAGNOSTICS)

5. Airbag Connector

A: PROCEDURE

For detailed operation procedure, refer to the “Air-

bag Connector” in AB section. <Ref. to AB-8, Air-

bag Connector.>

AB(diag)-24

Airbag Control Module I/O Signal

AIRBAG SYSTEM (DIAGNOSTICS)

6. Airbag Control Module I/O Signal

A: ELECTRICAL SPECIFICATION

• Terminal numbers in airbag control module connector are shown in the figure.

• The airbag warning light illuminates when the connector is removed from the airbag control module.

AB-02056

(1)

(2)

(3)

AB(diag)-25

Airbag Control Module I/O Signal

AIRBAG SYSTEM (DIAGNOSTICS)

B: WIRING DIAGRAM

Refer to the WI section wiring diagram. <Ref. to WI-82, WIRING DIAGRAM, Airbag System.>

Item

Control module terminal No.

Data link connector

(1) — 16

Combination meter

(1) — 11

Ignition power supply

Dedicated fuse

(1) — 21

Passenger’s airbag module level one

+

(1) — 4

–

(1) — 3

Passenger’s airbag module level two

+

(1) — 1

–

(1) — 2

Driver’s airbag module level one

+

(1) — 5

–

(1) — 6

Driver’s airbag module level two

+

(1) — 8

–

(1) — 7

Front sub sensor LH

+

(1) — 30

–

(1) — 28

Front sub sensor RH

+

(1) — 29

–

(1) — 27

Ground line (GND)

(1) — 25
(1) — 26

Passenger’s airbag OFF indicator

(1) — 17

Passenger’s airbag ON indicator

(1) — 23

Passenger’s seat belt warning light (integrated module)

(1) — 15

Side airbag sensor LH
Curtain airbag sensor LH

+

(2) — 8

–

(2) — 15

Side airbag module LH

+

(2) — 9

–

(2) — 10

Curtain airbag module LH

+

(2) — 7

–

(2) — 6

Seat belt pretensioner LH

+

(2) — 2

–

(2) — 1

Satellite safing sensor

+

(2) — 11

–

(2) — 12

Seat belt pretensioner RH

+

(3) — 4

–

(3) — 5

Side airbag sensor RH
Curtain airbag sensor RH

+

(3) — 8

–

(3) — 11

Side airbag module RH

+

(3) — 7

–

(3) — 6

Curtain airbag module RH

+

(3) — 9

–

(3) — 10

Occupant detection control module

+

(3) — 12

–

(3) — 13

AB(diag)-26

Subaru Select Monitor

AIRBAG SYSTEM (DIAGNOSTICS)

7. Subaru Select Monitor

A: OPERATION

1. READ DIAGNOSTIC TROUBLE CODE

(DTC)

When malfunction of airbag system occurs, the

DTC stored in airbag control module will be read

out.

1) Prepare the Subaru Select Monitor kit. <Ref. to

AB(diag)-8, SPECIAL TOOL, PREPARATION

TOOL, General Description.>

2) Connect the diagnosis cable to Subaru Select

Monitor.

3) Connect the Subaru Select Monitor to data link

connector.

(1) Data link connector is located in the lower

portion of instrument panel (on the driver’s

side).

(2) Connect the diagnosis cable to data link

connector.

CAUTION:

Do not connect the scan tools other than the

Subaru Select Monitor.

4) Turn the ignition switch to ON and run the Suba-

ru Select Monitor.

5) On «Main Menu» display, select {Each System

Check}.

6) On «System Selection Menu» display, select

{Airbag System}.

7) After {Airbag System} is displayed, select [OK].

8) Select the {Diagnostic Code(s) Display} in «Air-

bag System».
NOTE:

• For details concerning the operation procedure,

refer to “PC application help for Subaru Select

Monitor”.

• For details concerning DTCs, refer to List of Di-

agnostic Trouble Code (DTC). <Ref. to AB(diag)-

39, List of Diagnostic Trouble Code (DTC).>

2. CLEAR MEMORY MODE

Clear the DTC stored in the airbag control module

after repairing the airbag system. (After the break-

down is recovered, the breakdown code for com-

pleted recoveries are read out when the next

breakdown occurs if the memory clear work is not

performed.)

1) On «Main Menu» display, select {Each System

Check}.

2) On «System Selection Menu» display, select

{Airbag System}.

3) Select the {Clear Memory} in «Airbag System».

4) When the “Clear Memory?” is shown on the

screen, select [OK].

5) When “Done” is displayed, end the Subaru Se-

lect Monitor.
NOTE:

For detailed operation procedures, refer to “PC ap-

plication help for Subaru Select Monitor”.

IM-00275