Mitsubishi Montero (2002-2004). Manual - part 195

MAINTENANCE SERVICE

TSB Revision

GENERAL <BODY AND CHASSIS>

00-49

SRS Component Visual Check

DANGER

Wait at least 60 seconds after disconnecting the bat-
tery cable before doing any further work. The SRS
system is designed to retain enough voltage to
deploy the air bag for a short time even after the bat-
tery 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
cable is disconnected.

WARNING

Battery posts, terminals and related accessories con-
tain lead and lead compounds. WASH HANDS AFTER
HANDLING.

1. Turn the ignition switch to the "LOCK" (OFF) position,

disconnect the negative battery cable and tape the terminal.

2. Remove the floor console assembly. (Refer to GROUP 52A,

Floor Console

P.52A-7

3. Disconnect a connector from the SRS-ECU.

Front Impact Sensors

1. Check that the arrows on the sensors face toward the front

of the vehicle.

WARNING

The SRS may not activate if a front impact sensor is
not installed properly, which could result in serious
injury or death to the vehicle's driver and passenger.

2. Check the radiator support panel and front impact sensor for

deformation or rust.

3. Check the front impact sensor wiring harness for

binding;check the connector for damage; and check the
terminals for deformation.
Replace the sensor and/or wiring harness if they fail the
visual check. (Refer to GROUP 52B, SRS Service
Precautions

P.52Ba-18

and GROUP 52B, Front Impact

Sensor

P.52Ba-27

ACX00902 AB

TAPE

BATTERY

BATTERY CABLE

ACX01318

FRONT IMPACT SENSORS

MAINTENANCE SERVICE

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GENERAL <BODY AND CHASSIS>

00-50

Side Impact Sensors

WARNING

•

If the side impact sensor is not installed securely
and correctly, the side-airbag may not operate nor-
mally.

•

If a dent, crack, deformation or rust is detected,
replace with a new sensor.

1. Check the side impact sensor for dents, cracks or

deformation. The side impact sensors are located inside the
center pillars (LH/RH).

2. Check the connector for damage, and terminal for

deformation.

3. Check that there is no bending or corrosion in the center

pillars (LH/RH).

NOTE: The illustration at left shows the right side impact sen-
sor (RH). The position of the side impact sensor (
LH) is symmetrical to this.

SRS Air Bag Control Unit (SRS-ECU)

WARNING

The SRS may not activate if the SRS-ECU (with built-
in safing G-sensor and analog G-sensor) is not
installed properly, which could result in serious injury
or death to the vehicle's driver and passenger.

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

deformation or rust.

2. Check the connector for damage, and check the terminals

for deformation or rust.
Replace the SRS-ECU if it fails the visual check. (Refer to
GROUP 52B, SRS Air bag Control Unit

P.52Ba-31

Air Bag Module, Steering Wheel and Clock Spring

WARNING

The removed air bag module should be stored in a
clean, dry place with the pad cover face up.

1. Remove the air bag module, steering wheel and clock

spring.
(Refer to GROUP 52B, Air Bag Module and Clock Spring

P.52Ba-33

2. Check the pad cover for dents, cracks or deformation.

ACX00591AC

SIDE
IMPACT
SENSOR

CENTER
PILLAR

FORWARD

ACX00587AB

SRS-ECU

MAINTENANCE SERVICE

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GENERAL <BODY AND CHASSIS>

00-51

3. Check the connector for damage and deformed terminals,

and check the harness for binding.

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

deformation.

5. Check the harness (built into the steering wheel) and

connectors for damage, and check the terminals for
deformation.

6. Check the clock spring connectors and protective tube for

damage, and terminals for deformities.

7. Visually check the case for damage.

WARNING

If the clock spring's mating mark is not properly
aligned, the steering wheel may not completely rotate
during a turn, or the flat cable within the clock spring
may be severed, obstructing normal operation of the
SRS and possibly leading to serious injury to the
vehicle's driver and passenger.

8. Align the mating marks of the clock spring, and after turning

the front wheels to the straight-ahead position, install the
clock spring to the column switch.

Mating marks alignment

• After turning the clock spring fully clockwise, turn it approxi-

mately 3 4/5 turns counterclockwise until the mating marks
are aligned.

9. Install the steering column covers, steering wheel and air

bag module.

10.Check the steering wheel for noise, binding or difficult

operation.

DANGER

The SRS may not activate if any of the above compo-
nents are not installed properly, which could result in
serious injury or death to the vehicle's driver and pas-
senger.

11.Check the steering wheel for excessive free play.

ACX00589

INFLATOR
CASE

CONNECTOR

DRIVER'S
SIDE

PASSENGER'S
SIDE

ACX01302

CASE

PROTECTIVE
TUBES

ACX00602 AB

MATING MARK

ACX01319

AIR BAG
MODULE

MAINTENANCE SERVICE

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GENERAL <BODY AND CHASSIS>

00-52

REPLACE ANY VISUALLY INSPECTED PART IF IT FAILS
THAT INSPECTION. (Refer to GROUP 52B, Air Bag Module
and Clock Spring

P.52Ba-33

Front Seatback Assembly with Side-airbag
Module

WARNING

•

If any improper part is found during the following
inspection, replace the front seatback assembly
with a new one.

•

Dispose of the old one according to the specified
procedure. (Refer to GROUP 52B, Air Bag Module
and Seat Belt Pre-Tensioner Disposal Procedures

P.52Ba-48

•

Never attempt to measure the circuit resistance of
the air bag module (squib) even if you are using
the specified tester. If the circuit resistance is mea-
sured with a tester, accidental air bag deployment
will result in serious personal injury.

1. Check the air bag module deployment section for dents or

deformation.

2. Check the connector for damage; check the terminals for

deformation; and check the harness for binding.

Seat belt with pre-tensioner

WARNING

•

If the seat belt pre-tensioner is not installed
securely and correctly, the seat belt pre-tensioner
may not operate normally.

•

If a dent, crack, deformation or rust is detected,
replace with a new seat belt pre-tensioner.

1. Check the seat belt pre-tensioner for dents or deformation.
2. Check that the seat belt pre-tensioner is installed correctly to

the vehicle body.

ACX00590 AC

AIR BAG MODULE
DEPLOYMENT
SECTION

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