Mitsubishi Galant (2004+). Manual - part 1529

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-9

SCHEMATIC

AC306343

SIDE
IMPACT
SENSOR
(LH)

SIDE
IMPACT
SENSOR
(RH)

DATA LINK CONNECTOR
(FOR SCAN TOOL)

ON

ON

OFF

ON

OFF

OFF

CONNECTOR
LOCK SWITCH*

IGNITION SWITCH (IG1)

No.22
7.5A

No.23
7.5A

PASSENGER'S
SEAT BELT
WARNING LIGHT

DRIVER'S
AIR BAG
MODULE

CLOCK 
SPRING

ON

OFF

OFF

OFF

ON

ON

PASSENGER'S 
(FRONT) AIR BAG 
MODULE

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

SEAT BELT
PRE-TENSIONER
(LH)

SEAT BELT
PRE-TENSIONER
(RH)

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

SIDE-AIRBAG
MODULE (LH)

SIDE-AIRBAG
MODULE (RH)

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

CONNCTOR LOCK
SWITCH*

ON

OFF

NOTE
*: CONNECTOR CONNECTED: ON
   CONNECTOR DISCONNECTED: OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

CONNCTOR LOCK
SWITCH*

SRS-ECU

AB

PASSENGER'S
AIR BAG OFF
INDICATOR LIGHT

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

ON

OFF

ON

OFF

ON

OFF

OFF

OFF

ON

ON

ON

OFF

ON

OFF

ON

OFF

FRONT 
IMPACT
SENSOR
(LH)

FRONT 
IMPACT
SENSOR
(RH)

CAN BUS 
LINE

COMBINATION METER

SEAT SLIDE
SENSOR

OCCUPANT 
CLASSIFICATION-ECU

SEAT BELT SWITCH 
(DRIVER'S SIDE)

SEAT BELT SWITCH 
(PASSENGER'S SIDE)

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-10

SRS air bag special connector

To enhance the system reliability, a connector lock 
switch is integrated in the SRS-ECU connector, the 
air bag module connectors, the clock spring connec-
tor, the seat belt pretensioner connectors (black con-
nector "A" shown in the illustration below).

.

SQUIB CIRCUIT CONNECTOR LOCK SWITCH
The switch is a mechanism that shorts the power 
supply terminal to the ground terminal automatically 
in the air bag squib circuit when the connector is dis-
connected. A "short" spring is integrated inside the 
connector. This spring prevents static electricity from 
flowing to the squib by shorting the power supply ter-
minal to the ground terminal (i.e. there is no potential 
difference between the two terminals).

AC107353

SRS-ECU

SIDE-AIRBAG MODULE
(LH)

SEAT BELT WITH
PRE-TENSIONER
(DRIVER'S SIDE)

CLOCK
SPRING

DRIVER'S AIR BAG MODULE

PASSENGER'S (FRONT) 
AIR BAG MODULE

SEAT BELT WITH
PRE-TENSIONER
(FRONT PASSENGER'S
SIDE)

SIDE-AIRBAG MODULE
(RH)

A

A

A

AB

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-11

CAUTION

When the connector is disconnected, there will 
be short circuit between the terminals. This is not 
a fault.

AC006197

OFF

ON

OFF

ON

SQUIB

SRS-ECU

SQUIB

SRS-ECU

OFF

OFF

ON

ON

A

A

CONNECTOR DISCONNECTED

<CONNECTOR SHORTING MECHANISM (E.G. SRS-ECU CONNECTOR)>

ECU-SIDE CONNECTOR

WIRING HARNESS-SIDE CONNECTOR

TERMINAL
(MALE)

PARTITION 
PANEL

B

B

SHORT SPRING

SHORT SPRING

AG

SECTION B - B

SHORT
SPRING

SECTION A - A

CONNECTOR CONNECTED

TERMINAL
(MALE)

TERMINAL
(MALE)

PARTITION 
PANEL

PARTITION PANEL

TERMINAL
(FEMALE)

TERMINAL
(FEMALE)

TERMINAL
(FEMALE)

CONNECTOR CONNECTED

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-12

CONFIGURATION DIAGRAMS

AC307197

AC304366

AC304353

AC304363

AC304362

C-101

AB

DASH PANEL

STEERING COLUMN

FLOOR AND ROOF

ENGINE ROOM

C-307

A-23

C-305

A-27

C-121

C-122

C-125

C-110

D-27

D-33

D-32

D-35

D-20

D-21

D-24

D-29

D-30

D-28

C-120

C-06

C-07