Mitsubishi Outlander XL. Manual — part 1320

GENERAL INFORMATION

M25201000001USA0000010000

｠

Driver and passenger’s (front) air bags and seat
belt pre-tensioner deploy and operate in frontal
collisions that exceed the threshold to activate
the SRS (Supplemental Restraint System).

｠

The specific value is the equivalent impact when
a vehicle collides against a concrete (fixed) wall
at approximately 25 km/h (16 mph) or more.

｠

The front air bags and pre-tensioner may not
work under the following conditions:

｠

A frontal collision is less than the specific
value.

｠

The collision is from the rear

｠

The collision is from the side

｠

The vehicle rolls over or is in a similar
position.

｠

The side-airbags may not work under the
following conditions:

｠

The collision is from the front

｠

The collision is from the rear

｠

To provide a better safety upon impact, the driver's
and front passenger's air bags, side air bags,
curtain air bags and seat belts with pre-tensioner
have been installed to all the vehicles as standard.

｠

The SRS is a system that is effective with the seat
belt fastened, and it is designed as a supplemental
system of the seat belt.

｠

The advanced air bag system has been adopted to
the driver's and front passenger's sides. When a
frontal impact exceeds the threshold upon a frontal
collision, or depending on the seat position (driver's
seat side), the air bag inflates the cushion air bag in
two stages, improving the protection for the front
seat passengers.

｠

The side-airbag is activated when an impact
exceeds the threshold upon a side collision, and the
cushion air bag is instantaneously inflated to protect
the chest area of the front seat passengers.

｠

The curtain air bag is activated simultaneously with
the side-airbag upon a side collision to protect the
heads of the front seat and second seat
passengers.

｠

All the air bag modules are equipped with the
inflator that does not contain toxic sodium azide.

｠

The seat belt pre-tensioner is activated
simultaneously with the deployment of driver's and
passenger's (front) air bags in case of a frontal
collision. Seat belts are pulled in to eliminate the
slack upon a collision, thus improving the initial
occupant restraint, and reducing the travel distance
of the occupants. For the driver's seat, in addition
to the seat belt pre-tensioner for the shoulder side,
the lap pre-tensioner has been installed on the outer
seat belt lower anchor side in order to improve the
restraining performance in the waist and the chest
areas.

52B-2

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

GENERAL INFORMATION

ZC600850

Driver's air bag
module

Passenger's (front)
air bag module

Side-airbag module

Curtain air bag module

Seat belt with
pre-tensioner

0000

System Component Parts

The SRS consists of six air bag modules, SRS-ECU
(air bag control unit), two front impact sensors, four
side impact sensors, SRS warning light, passenger’s
air bag OFF indicator light, passenger’s seat belt
warning light, clock spring, seat belt pre-tensioner,
seat belt switch, seat slide sensor, occupant
classification-ECU and weight sensor. Air bag
modules are located in the center of the steering
wheel and above the glove box. Side-airbags are
located inside the front seatback assemblies. Each air
bag consists of a folded air bag and an inflator unit.
On all air bag modules, the inflator does not contain
sodium azide. The SRS-ECU placed on the forefront
of the floor monitors the system and has a front air bag
safing G-sensor, front air bag analog G-sensor and a
side-airbag safing G-sensor. The front impact sensor
is assembled in the front end upper bar to monitor
impact in case of front impact. The side impact
sensors inside the center pillars and quarter panel
monitor the shock incurred by the sides of the vehicle.
The SRS warning light on the combination meter
indicates the operational status of the SRS. The clock
spring is installed in the steering column. The seat belt

pre-tensioner is built into the driver's and passenger's
front seat belt retractor. The seat slide sensor is
installed at the seat adjuster section of the driver seat
in order to detect the driver seat slide position. The
weight sensor is installed underneath a rail of the
passenger seat to detect the load on the seat. The
passenger’s air bag OFF indicator light is installed to
the lower left of the center panel, and illuminates when
the passenger’s (front) air bag is inactive. The
passenger’s seat belt warning light is installed to the
lower right of the center panel, and illuminates when
the passenger is not wearing the seat belt. The seat
belt switch detects whether the seat belt is used.
The SRS-ECU will start a squib ignition current to the
driver's/passenger’s (front) air bag module and seat
belt pre-tensioner when simultaneously detecting
frontal impact with the front impact sensor, front air
bag safing G-sensor and front air bag analog G-
sensor. It will also supply a squib ignition current to
the side-airbag module when simultaneously
detecting side impact with the side impact sensor and
side-airbag safing G-sensor.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-3

GENERAL INFORMATION

CONSTRUCTION DIAGRAM

ZC501889

ZC600985

J A 4 M S 3 1 X 1 7 U 0 0 0 0 0 1

SRS warning lamp

SRS-ECU

Driver's air bag module

Clock spring

Passenger's (front)
air bag module

Diagnosis connector

Side impact sensor (front)

Side impact sensor (rear)

Curtain air bag module

Side-airbag module

Seat belt
pre-tensioner

Seat belt
pre-tensioner

Lap
pre-tensioner (LH)

AA00

Occupant classification-ECU

Seat slide sensor

Weight
sensor

SRS warning lamp

Vehicle
identification
code chart plate

Passenger’s seat belt warning light

Passenger’s air bag OFF indicator light

<Vehicles for USA>

<Vehicles for CANADA>

52B-4

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

GENERAL INFORMATION

SRS SYSTEM CIRCUIT DIAGRAM

AC600936

No.12
7.5A

No.18
7.5A

CLOCK
SPRING

ON

OFF

OFF

OFF

ON

ON

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

CONNECTOR LOCK
SWITCH*

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

CONNECTOR LOCK
SWITCH*

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

ON

OFF

ON

OFF

ON

OFF

OFF

OFF

ON

ON

ON

OFF

ON

OFF

ON

OFF

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

ON

OFF

ON

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF

ON

OFF

ON

CONNECTOR
LOCK SWITCH*

ON

OFF

ON

OFF

OFF

Ignition switch (IG1)

Driver's air bag module

Passenger's (front)
air bag module

Side-airbag module
(LH)

Side-airbag module
(RH)

Seat belt pre-tensioner
(LH)

Seat belt pre-tensioner
(RH)

Lap pre-tensioner
(LH)

Curtain air bag module
(LH)

Curtain air bag module
(RH)

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Front impact sensor
(RH)

Front impact sensor
(LH)

Side impact
sensor (LH)

Side impact
sensor (RH)

<Front>

<Rear>

<Front>

<Rear>

Note
* : Connector lock switch
Connector connected: ON
Connector disconnected: OFF

Data link connector
(For scan tool)

Can bus line

Seat belt switch
(Driver’s side)

Seat belt switch
(Passenger’s side)

Combination meter

AA00

SRS-ECU

Passenger’s air bag
OFF indicator light

Fusible link

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-5

GENERAL INFORMATION