Mitsubishi Colt Ralliart. Manual — part 576

FRONT IMPACT SENSORS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-142

INSTALLATION SERVICE POINTS
>>A<< PRE-INSTALLATION INSPECTION

When the new front impact sensor refer to the previ-
ous item "INSPECTION."

>>B<< FRONT IMPACT SENSOR
INSTALLATION

WARNING

The SRS may not activate properly if a front
impact sensor is not installed properly.

1. Securely connect the connector.
2. Position the front impact sensor facing toward the

front of the vehicle as shown by the arrow on the
label, and install it securely.

>>C<< POST-INSTALLATION
INSPECTION

1. Connect the negative battery cable.
2. Turn the ignition key to "ON" position.

3. Does the "SRS" warning lamp illuminate for

approximately seven seconds, and go out?

4. If no, refer to troubleshooting (Refer to

P.52B-11

).

INSPECTION

M1524001600620

WARNING

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

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

deformation or rust.

2. Check the connector for damage, and terminals

for deformation.

3. Check the headlamp support panel for

deformation.

AC510172

<VR-X>

<Except-VR-X>

SRS warning lamp

SRS warning lamp

AC

Main

Index

Group

TOC

SRS CONTROL UNIT (SRS-ECU)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-143

SRS CONTROL UNIT (SRS-ECU)

REMOVAL AND INSTALLATION

M1524002100963

WARNING

•

Disconnect the negative battery terminal and wait for 60 seconds or more before starting
work. Furthermore, the disconnected battery terminal should be covered with tape to
insulate it.

•

Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.

•

Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deforma-
tion, or rust are discovered in the SRS-ECU, replace it with a new front impact sensor. Dis-
card the old one.

•

After deployment of an air bag, replace the SRS-ECU with a new one.

•

Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment
described on

P.52B-9

.

Pre-removal Operation
• Turn the ignition switch to the "LOCK" (OFF) position.

• Disconnect the Negative Battery Terminal.

AC207865

1

4.9 ± 0.98 N·m

AC

Removal steps

•

Centre console (Refer to GROUP
52A, Instrument panel assembly

P.52A-3

).

1.

SRS-ECU

Installation steps

>>

A

<<

1.

SRS-ECU

•

Centre console (Refer to GROUP
52A, Instrument panel assembly

P.52A-3

).

•

Negative battery cable connection

>>

B

<<

•

Post-installation inspection

Main

Index

Group

TOC

SRS CONTROL UNIT (SRS-ECU)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-144

INSTALLATION SERVICE POINTS
>>A<< SRS-ECU INSTALLATION

WARNING

The SRS may not activate if SRS-ECU is not
installed properly.

>>B<< POST-INSTALLATION
INSPECTION

1. Connect the negative battery cable.
2. Turn the ignition key to "ON" position.

3. Does the "SRS" warning lamp illuminate for

approximately seven seconds, and go out?

4. If no, refer to troubleshooting (Refer to

P.52B-11

).

INSPECTION

M1524002200465

WARNING

If any problems are found, replace the
SRS-ECU.

• Check the SRS-ECU and brackets for dents,

cracks or deformation.

• Check the SRS-ECU connector for damage, and

the terminals for deformation.

NOTE: For the checks other than the items above,
refer to "Troubleshooting" (Refer to

P.52B-11

).

AC510172

<VR-X>

<Except-VR-X>

SRS warning lamp

SRS warning lamp

AC

Main

Index

Group

TOC

DRIVER'S AND PASSENGER'S (FRONT) AIR BAG MODULES AND CLOCK SPRING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-145

DRIVER'S AND PASSENGER'S (FRONT) AIR BAG

MODULES AND CLOCK SPRING

REMOVAL AND INSTALLATION

M1524014500485

WARNING

•

Disconnect the negative battery terminal and wait for 60 seconds or more before starting
work. Furthermore, the disconnected battery terminal should be covered with tape to
insulate it.

•

Never attempt to disassemble or repair the air bag modules or clock spring. If faulty,
replace it.

•

Do not drop the air bag modules or clock spring or allow contact with water, grease or oil.
Replace it if a dent, crack, deformation or rust is detected.

•

The air bag modules should be stored on a flat surface is facing upward. Do not place
anything on top of it.

•

Do not expose the air bag modules to temperatures over 93

°

C.

•

After deployment of an air bag, replace the clock spring with a new one.

•

Wear gloves and safety glasses when handling air bags that have already deployed.

•

An undeployed air bag module should only be disposed of in accordance with the proce-
dures (Refer to

P.52B-162

).

Main

Index

Group

TOC