Mitsubishi Montero (2004+). Manual - part 1170

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-15

AIR BAG 
DRIVE CIRCUIT

WARNING LIGHT
DRIVE CIRCUIT

CONNECTOR LOCK
DETECTION CIRCUIT

FRONT AIR
BAG ANALOG 
G SENSOR

INTERFACE CIRCUIT

FRONT IMPACT
SENSOR (LH)

FRONT IMPACT
SENSOR (RH)

CONNECTOR
LOCK SWITCH

CONNECTOR
LOCK SWITCH

CONNECTOR
LOCK SWITCH

CONNECTOR
LOCK SWITCH

AIR BAG MODULE
(SQUIB)
(PASSENGER'S SIDE)

COMBINATION
METER

NOTE

: CONNECTOR
  COUPLED: ON
  CONNECTOR
  UNCOUPLED: OFF

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-16

AIR BAG
DRIVE
CIRCUIT

AIR BAG
DRIVE
CIRCUIT

AIR BAG
DRIVE
CIRCUIT

AIR BAG
DRIVE
CIRCUIT

INTERFACE
CIRCUIT

SIDE AIR BAG 
SAFING G SENSOR
(ANALOG G SENSOR)

MICROCOMPUTER

SRS-ECU

CONSTANT
VOLTAGE
CIRCUIT

EEPROM

CPU

ANALOG G
SENSOR

ANALOG G
SENSOR

CONSTANT
VOLTAGE
CIRCUIT

EEPROM

CPU

SIDE
IMPACT
SENSOR
(LH)

SIDE 
IMPACT
SENSOR
(RH)

CONNECTOR
LOCK 
SWITCH

CONNECTOR
LOCK 
SWITCH

CONNECTOR
LOCK 
SWITCH

CONNECTOR
LOCK 
SWITCH

CONNECTOR
LOCK SWITCH

SEAT BELT
PRETENSIONER
(LH)

SEAT BELT
PRETENSIONER
(RH)

SIDE AIR BAG
MODULE (SQUIB)
(LH)

SIDE AIR BAG
MODULE (SQUIB)
(RH)

CONNECTOR
LOCK SWITCH

CONNECTOR
LOCK SWITCH

CONNECTOR
LOCK SWITCH

NOTE

: CONNECTOR
  COUPLED: ON
  CONNECTOR
  UNCOUPLED: OFF

GENERAL DESCRIPTION

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-17

COMPONENT LOCATION

NOTE: The illustration above shows the front impact sensor (LH) and the side impact sensor (RH). The posi-
tion of the front impact sensor (RH) and the side impact sensor (LH) is symmetrical to this.

AC204302

SIDE IMPACT SENSOR

SRS-ECU

DATA LINK CONNECTOR

CENTER
PILLAR

SIDE IMPACT
SENSOR

SRS-ECU

AB

DATA LINK 
CONNECTOR

FRONT IMPACT SENSOR

FRONT 
IMPACT
SENSOR

FRONT BUMPER

SERVICE PRECAUTIONS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-18

SERVICE PRECAUTIONS

M1524000300530

DANGER

•

In order to avoid injury to yourself or others from 
accidental deployment of the air bag during servic-
ing, read and carefully follow all the precautions 
and procedures described in this manual.

•

After disconnecting the battery cable, wait 60 sec-
onds or more before proceeding with the following 
work. The SRS system is designed to retain 
enough voltage to deploy the air bag for a short 
time even after the battery has been disconnected, 
so serious injury may result from unintended air 
bag deployment if work is done on the SRS system 
immediately after the battery cables are discon-
nected.

WARNING

•

Battery posts, terminals and related accessories 
contain lead and lead compounds. WASH HANDS 
AFTER HANDLING.

•

Do not use any electrical test equipment on or near 
the SRS components, except those specified on 

P.52B-205

.

•

Never Attempt to Repair the Following Compo-
nents: SRS-ECU, Clock Spring, Air Bag Module, 
Front Impact sensor, Side Impact Sensor, Seat Belt 
with Pre-tensioner. If any of these components are 
diagnosed as faulty, they should only be replaced, 
in accordance with the INDIVIDUAL COMPONENT 
SERVICE procedures in this manual, starting on 

P.52B-210

.

•

Do not attempt to repair the wiring harness con-
nectors of the SRS. If any of the connectors are 
diagnosed as faulty, replace the wiring harness. If 
the wires are diagnosed as faulty, replace or repair 
the wiring harness according to the following 
table.

ACX00583

INSULATING TAPE

BATTERY

BATTERY CABLE (–)

AC

ACX00582AB