Mitsubishi L200. Manual — part 647

POST-COLLISION DIAGNOSIS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-259

3. Check the harness for binding, connectors for

damage, poor connections, and terminals for
deformation (Refer to

P.52B-5

).

<SIDE AND CURTAIN AIR BAGS ARE
DEPLOYED>
1. Replace the following parts with new ones.

• SRS-ECU (Refer to

P.52B-266

).

• Front seatback assembly (Refer to

P.52B-276

).

• Curtain air bag module (Refer to

P.52B-279

).

• Side impact sensor (Refer to

P.52B-282

).

• Headlining (Refer to GROUP 52A, Headlining ).

• Front pillar trim, centre pillar upper trim, rear pillar

upper trim (Refer to GROUP 52A

− Interior Trim ).

• Seat belt with pre-tensioner (Refer to

P.52B-284

).

2. Check the wiring harness for binding, the

connector for damage, and the terminal for
deformation (Refer to

P.52B-5

).

WHEN AIR BAGS DO NOT DEPLOY IN LOW-
SPEED COLLISION.
Check the SRS components. If visible damage such
as dents, cracks, or deformation are found on the
SRS components, replace them with new ones. Con-
cerning parts removed for inspection, replacement
with new parts and cautions in working, refer to

P.52B-261

FRONT IMPACT SENSOR

AC501622 AB

Front impact sensor

Radiator

1. Check the head lamp support panel for distortion

and rust.

2. Check the front impact sensor for dents, cracks,

deformation or rust.

3. Check the front impact sensor wiring harness for

binding, check the connector for damage, and
check the terminals for deformation.
NOTE: The figures show front impact sensors
(RH). The front impact sensors (LH) is symmetri-
cal with the front impact sensors (RH).

SRS-ECU

AC502256

SRS-ECU

AB

1. Check the SRS-ECU case for dents, cracks or

deformation.

2. Check the connector for damage, and the

terminals for deformation.

3. Check the SRS-ECU for installation condition.

AIR BAG MODULES

AC809499

Connector

Inflator case

Connector

Inflator case

Connector

Driver's air bag module

Passenger's (front) air bag module

<Vehicles without wide fender (optional)>

Connector

Inflator case

AC

<Vehicles with wide fender (optional)>

1. Check the pad cover for dents, cracks or

deformation.

POST-COLLISION DIAGNOSIS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-260

2. Check the connector for damage, terminals

deformities, and the harness for binding.

3. Check the air bag inflator case for dents, cracks or

deformities.

4. Check the air bag modules for proper installation.

CLOCK SPRING

AC304044AC

Case

Protective tubes

1. Check the clock spring connectors and protective

tube for damage, and the terminals for
deformation.

2. Visually check the case for damage.

SEAT BELT PRE-TENSIONER

AC800971

Centre

pillar or

quarter pillar

AD

Seat belt
pre-tensioner

1. Check the seat belt for damage or deformation.
2. Check the seat belt pre-tensioner for cracks or

deformation.

3. Check that the unit is installed correctly to the

vehicle body.

FRONT SEAT ASSEMBLY (WITH BUILT-IN SIDE-
AIRBAG MODULE)

AC801114AB

Side-airbag
module
deployment
section

1. Check that the side-airbag module deployment

part of the seat is normal.

2. Check the connector for damage, the terminal for

deformation and the harness for binding.

SIDE IMPACT SENSOR

AC800518

AE

Side impact
sensor

Centre pillar
or quarter
pillar

1. Check the centre pillar <Double cab> or quarter

pillar <Club cab> for deformation.

2. Check the side impact sensor for dent, crack,

deformation or rust.

3. Check the connector for damage, the terminal for

deformation and the harness for binding.

NOTE: The illustration shows the side impact sensor
(LH). The position of the side impact sensor (RH) is
symmetrical to this.

CURTAIN AIR BAG MODULE

AC800743

Curtain air bag module
deployment section

AB

INDIVIDUAL COMPONENT SERVICE

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-261

1. Check that the curtain air bag deployment part of

the headlining is normal.

2. Check the inflator surface for cracks, dents or

deformations.

3. Check the connector for damage, the terminal for

deformation and the harness for binding.

NOTE: The illustration shows the curtain air bag
module (RH). The position of the curtain air bag
module (LH) is symmetrical to this.

STEERING WHEEL, STEERING COLUMN AND
SHAFT ASSEMBLY
1. Check the wiring harness (built into the steering

wheel) and the connectors for damage, and the
terminals for deformation.

2. Install the air bag module to check fit or alignment

with the steering wheel.

3. Check the steering wheel for noise, binding or

difficult operation and excessive free play.

4. Check the steering column shaft shock absorbing

mechanism (Refer to GROUP 37, On-vehicle
Service ).

HARNESS CONNECTOR (INSTRUMENT PANEL
WIRING HARNESS AND FLOOR WIRING
HARNESS)
Check harnesses for binding, connectors for damage
and terminals for deformation (Refer to

P.52B-5

).

INDIVIDUAL COMPONENT SERVICE

M1524002901069

WARNING

•

If heat damage may occur during paint work, remove the SRS-ECU, the air bag modules,
the clock spring, impact sensors, passenger’s air bag cut off switch and the seat belt with
pre-tensioner.

•

SRS-ECU, air bag modules, clock spring, impact sensors and passenger’s air bag cut
off switch: 93

°

C or more

•

Seat belt with pre-tensioner: 90

°

C or more

•

If the SRS components are removed for the purpose of check, sheet metal repair, painting,
etc., they should be stored in a clean, dry place until they are reinstalled.

If the SRS components are to be removed or
replaced as a result of maintenance, troubleshooting
etc., follow the service procedures that follow.

• Front impact sensors; refer to

P.52B-263

• SRS-ECU; refer to

P.52B-266

• Driver’s and passenger’s (front) air bag modules

and clock spring; refer to

P.52B-268

• Side-air bag module; refer to

P.52B-276

• Curtain air bag module; refer to

P.52B-279

• Side impact sensors; refer to

P.52B-282

• Seat belt with pre-tensioner; refer to

P.52B-284

WARNING/CAUTION LABELS

M1524003002039

Caution labels on the SRS are attached in the vehicle as shown. Follow label instructions when servicing the
SRS. If the label(s) are dirty or damaged, replace with new one(s).

AC501619

AC501620

AC501671

AC800660

AC800659

AC900542

AC800593

Passenger's (front)
air bag module

SRS-ECU

Sunvisor

Instrument panel

Curtain air bag module
(right and left)

Side-airbag module
(right and left)

Glove box

Passenger's air bag
cut off switch

Seat belt pre-tensioner
(driver's and front passenger's seat)

Passenger's air bag
cut off switch

AD

Driver's air bag module

<Vehicles without wide fender
(optional)>

<Vehicles with wide fender
(optional)>

(Passenger side)

WARNING/CAUTION LABELS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-262