Mitsubishi Montero (2002-2004). Manual - part 769

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52Ba-9

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).

AC204517

SRS-ECU

SIDE-AIRBAG MODULE
(LH)

CLOCK
SPRING

DRIVER'S AIR BAG MODULE

PASSENGER'S (FRONT) 
AIR BAG MODULE

SIDE-AIRBAG MODULE
(RH)

A

A

A

AB

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52Ba-10

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 PREVENTION MECHANISM (E.G. SRS-ECU CONNECTOR)>

ECU-SIDE CONNECTOR

WIRING HARNESS-SIDE CONNECTOR

TERMINAL
(MALE)

PARTITION 
PANEL

B

B

SHORT SPRING

SHORT SPRING

AF

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)

52Ba-11

WARNING LIGHT CIRCUIT CONNECTOR LOCK SWITCH
The switch is a mechanism that shorts the power supply termi-
nal to the ground terminal automatically in the warning light cir-
cuit when the connector is disconnected. Its structure is similar 
to the squib circuit connector shorting mechanism. 

AC006203

IGNITION
SWITCH (IG1)

SRS WARNING
LIGHT

SHORT
SPRING

AG

SRS-ECU HARNESS-SIDE
CONNECTOR

OFF

ON

NOTE
*: CONNECTOR CONNECTED: ON
   CONNECTOR DISCONNECTED: OFF

CONNECTOR
LOCK SWITCH*

OFF

ON

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52Ba-12

CONFIGURATION DIAGRAMS

AC204431 AB

D-11

D-04

E-08

E-07

F-19

F-15

D-206

D-229

D-118

D-03

F-29

F-21

F-27

F-13

A-23

A-30

A-23 (Y)

FRONT IMPACT SENSOR (LH) 

A-30 (Y)

FRONT IMPACT SENSOR (RH) 

D-03 (GR)

COMBINATION METER (FOR SRS 
WARNING LIGHT)

D-04 (GR)

COMBINATION METER (FOR SRS 
WARNING LIGHT)

D-11 (R)

AIR BAG MODULE (FRONT 
PASSENGER'S SIDE)

D-118 (B)

DATA LINK CONNECTOR (FOR 
SCAN TOOL)

D-206 (Y)

CLOCK SPRING

D-229

AIR BAG MODULE (DRIVER'S 
SIDE)

E-07 (Y)

SRS-ECU

E-08 (Y)

SRS-ECU

F-13 (Y)

SIDE IMPACT SENSOR (LH) 

F-15 (R)

SIDE-AIRBAG MODULE (SQUIB) 
(LH) 

F-19 (Y)

SIDE IMPACT SENSOR (RH) 

F-21 (R)

SIDE-AIRBAG MODULE (SQUIB) 
(RH) 

F-27 (R)

SEAT BELT PRE-TENSIONER 
(LH) 

F-29 (R)

SEAT BELT PRE-TENSIONER 
(RH)