Mitsubishi Galant (2004+). Manual - part 1737

CONSTRUCTION AND OPERATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-21

DATA LIST OUTPUT

The data input from all sensors and switches can be 
read using the scan tool.

ACTUATOR TEST

The scan tool can be used to forcibly operate the 
next actuator.

ACCURACY CHECK OCCUPANT 
CLASSIFICATION SENSOR

The scan tool can be used to perform the next func-
tion.

•

Seat Weight Sensor Accuracy Check

•

Zero-calibration

No.

DATA LIST ITEM

CHECK 
CONDITIONS

NORMAL CONDITIONS

01

Failure continuation time 1

Always

Maximum time to be stored: 9999 
minutes (approximately seven 
days)

02

Failure continuation time 2

Always

03

Seat position

Slide the seat from 
the back-end position 
to the front-end 
position.  

Rear/Front

04

Passenger seat Airbag Ignition

Do not apply any load 
to the passenger 
seat.

Permission/Prohibition

06

Driving seatbelt (Buckle SW1)

Wear the driver 
seatbelt.

Unfastened/Fastened

07

Driving seatbelt (Buckle SW2)

Undo the driver 
seatbelt.

Fastened/Unfastened

08

Passenger seatbelt (Buckle 
SW1)

Wear the passenger 
seatbelt.

Unfastened/Fastened

09

Passenger seatbelt (Buckle 
SW2)

Undo the passenger 
seatbelt.

Fastened/Unfastened

10

Elimination times

Always

Maximum time to be stored: 255 
days

42

OCSS Occupant Classification

Apply a load to the 
passenger seat.

Class 0/Class 1/Class 2/Not Clear/

−

44

OCSS Occupant Weight

kg/Unkown

45

OCSS Parts Number

Always

−

MUT-III SCAN TOOL 
DISPLAY

ITEM NO.

ITEM

PARTS TO BE ACTIVATED

SRS Warning Lamp

01

The SRS warning light illuminates.

CAN output

Passenger Seat belt 
Warning Lamp

02

Seat belt warning light illumination

SRS-ECU output

P/Seat belt Warning 
Lamp Cut Off

03

Air bag-OFF indicator light 
illumination

CONSTRUCTION AND OPERATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-22

SRS AIR BAG SPECIAL CONNECTOR

M2521009000109

A connector engagement check mechanism is used. 
A connector lock switch is integrated in the 
SRS-ECU connector, the air bag module connectors, 
the clock spring connector and the seat belt 
pre-tensioner connectors (black connector "A" 
shown in the illustration above).

AC305968

SRS-ECU

A

A

A

AB

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)

CONSTRUCTION AND OPERATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-23

SQUIB CIRCUIT CONNECTOR LOCK SWITCH

CAUTION

When the connector is disconnected, it is normal 
for short-circuiting to occur between the connec-
tor terminals.

•

The diagnosis spring is assembled on the 
SRS-ECU wiring harness-side connector. When 
the ECU-side connector is connected to the 
SRS-ECU wiring harness-side connector, the 
diagnosis spring is disengaged from the terminal 
to short the circuit between the ECU-side con-
nector terminals. The connector engagement is 
detected electrically by the monitor to this circuit.

•

This mechanism automatically short-circuits the 
power supply side terminal and ground side ter-
minal of the air bag when the connector is discon-
nected. A short spring is incorporated in the 
connector to short-circuit the power supply side 
terminal and ground side terminal of the air bag 
(no potential difference between the two termi-
nals) and prevent flow of current by static electric-
ity to the squib.

AC300257

OFF

ON

OFF

ON

Squib

SRS-ECU

A

A

<Connector shorting mechanism (e. g. SRS-ECU connector)>

ECU-side connector

B

B

AC

Section B - B

Section A - A

Connector connected

OFF

ON

OFF

ON

Squib

SRS-ECU

Connector disconnected

Terminal
(male)

Partition panel

Terminal
(female)

Short spring

Wiring harness-side connector

Terminal
(male)

Partition panel

Terminal
(female)

Short spring

 Connector connected

Terminal
(male)

Partition panel

Terminal
(female)

Short spring

Diagnosis spring

Diagnosis 
spring

NOTES