Mitsubishi Outlander XL. Manual — part 1322

SIDE AND CURTAIN AIR BAGS

M25201000104USA0000010000

Ignition judgment

Shock
above a
certain
level

Ignition signal

SRS-ECU

G-sensor (Side-airbag,
curtain air bag)

Curtain air bag modules

Side-airbag modules

Side impact
sensor
(front: RH)

Side impact
sensor
(rear: RH)

Side impact against another vehicle

Side impact
sensor
(front: LH)

Side impact
sensor
(rear: LH)

0000

ZC601602

SRS-ECU uses data of the side impact sensor (front
[center pillar area]), side impact sensor (rear [rear
quarter panel area]), and G-sensor (in SRS-ECU) to

calculate collision severity, during side collision. SRS-
ECU judges necessity of side-airbag and curtain air
bag based on the calculated collision severity.

SYSTEM CONSTRUCTION

DRIVER'S AIR BAG MODULE

M25201000020USA0000010000

ZC501972

A

A

0001

Air bag module

Section A - A

Inflator

Squib connector

Air bag

The driver’s air bag module incorporates a three-
spoke steering wheel. The driver’s air bag module is

52B-10

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SYSTEM CONSTRUCTION

an assembly part consisting of an air bag, inflator, and
their fasteners. The air bag is made from nylon and
inflates by gas from the inflator. As a driver is being
pressed to the air bag, it deflates discharging gas from
two vents at the rear of the air bag to reduce the shock

from the impact. The driver's air bag deploys by
changing its inflation pressure in two steps. The
inflator has two squib connectors to deploy the air bag
in two steps. The inflator does not contain sodium
azide.

CLOCK SPRING

M25201000011USA0000010000

ZC600994

Rotator

Flat cable

Damper plate

Stator

Anti-vibration sheet

0000

The clock spring consists of a flat cable, rotator, stator, etc. The
flat cable is loosely wound in the case in coil-form. One end is
attached to the rotator and the other end is attached to the stator.
By turning the steering wheel, the clock spring rotator turns along
with the steering shaft. The flat cable is wound or unwound by
the rotator according to how the steering wheel turns. It must be
in the neutral position when assembling the clock spring.

NOTE:

For the clock spring centering procedures, refer to

the SERVICE MANUAL.

PASSENGER'S (FRONT) AIR BAG MODULE

M25201000105USA0000010000

ZC601604

Squib connectors

Inflator

0000

Air bag

Air bag module

The passenger’s (front) air bag module consists of an
air bag, inflator, module cover (incorporating the air
bag lid), and their fasteners.
The air bag is made from nylon and inflates by the gas
from the inflator. As a passenger is being pressed to
the air bag, it deflates, discharging gas from two vents
at the side of the air bag to reduce the shock from the
impact.

The front passenger’s air bag deploys by changing its
inflation pressure in two steps.
The inflator has two squib connector to deploy the air
bag in two steps.
The front passenger air bag does not deploy at the
front passenger seat is not occupied and when the
occupant classification sensor in the front passenger
seat senses a weight on the seat of less than 66
pounds (30 kg).
An inflator that does not contain sodium azide is used.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-11

SYSTEM CONSTRUCTION

SIDE-AIRBAG MODULE

M25201000040USA0000010000

ZC601006

Air bag module

0000

The side-airbag module consists of an air bag, air bag
cover, inflator and their fasteners. The modules are
installed in the outer side supports of the driver’s and
front passenger’s seatbacks. The side-airbags help
protect the occupants regardless of the seat position
and seatback angle.

The side-airbag made of nylon fabric. The air bags are
compactly folded and stored under the cover. On the
side of the air bag, there are holes through which gas
is partially released to alleviate shock to the occupant
when the air bag is deployed. An inflator that does not
contain sodium azide is used.

CURTAIN AIR BAG MODULE

M25201000005USA0000010000

ZC601617

Igniter power

Burst disk

Curtain air bag module

Inflator

0000

The curtain air bag module consists of an air bag, an
inflator, and the fixing gear relating to those parts, and
is installed in the roof side sections (from the driver's
and the passenger's front pillars to the rear pillars).

The air bag is made from nylon with the inside coated
with silicon, and housed in the roof side sections,
folded up compactly.

52B-12

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SYSTEM CONSTRUCTION

The inflator is of a cold gas type filled with high-
pressure gas (major component: Helium). When

current passes through the squib to ignite the igniter
powder, the burst disk bursts, emitting the gas into the
air bag.

FRONT IMPACT SENSOR

M25201000050USA0000010000

ZC601277

Front end upper bar

Front impact sensor

0000

｠

The front impact sensor is installed on the front end upper in
the engine room, and the analogue G-sensor is housed in the
front impact sensor.

｠

The front impact sensor transmits the coded acceleration data
to SRS-ECU. Based on the data, SRS-ECU determines the
deployment stage of the front air bag, then energizes
appropriate squib.

｠

SRS-ECU performs the diagnostics of the front impact sensor
internal components. If a malfunction occurs, it sets the
diagnostic trouble code.

SIDE IMPACT SENSOR

M25201000060USA0000010000

ZC501991

AC506883

AC506366

<Front>

Second seat belt

Side impact sensor

Quarter panel

<Rear>

Center pillar

Side impact sensor

0000

｠

The side impact sensors are installed to the lower
part of the center pillars on both sides and to the
quarter panels on both sides, and the analogue G-
sensor is housed in the side impact sensor.

｠

The front impact sensor transmits the coded
acceleration data to SRS-ECU. Based on the data,

SRS-ECU determines the deployment of the side-
airbags and curtain air bags, then energizes
appropriate squib(s).

｠

SRS-ECU performs the diagnostics of the side
impact sensor internal components. If a malfunction
occurs, it sets the diagnostic trouble code.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-13

SYSTEM CONSTRUCTION