Mitsubishi Grandis. Manual — part 1046

SIDE IMPACT SENSOR

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-236

SIDE IMPACT SENSOR

REMOVAL AND INSTALLATION

M1524004600373

WARNING

•

Never attempt to disassemble or repair the side impact sensors. If faulty, replace it.

•

Do not drop or subject the side impact sensors to impact or vibration. If denting, cracking,
deformation, or rust are discovered in the side impact sensors, replace it with a new front
impact sensor. Discard the old one.

•

After deployment of an air bag, replace the side impact sensors with a new one.

•

Never use an ohmmeter on or near the side impact sensors, and use only the special test
equipment described on

P.52B-12

.

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

AC312534

AC302596

AC312161

1

2

10 ± 2 N·m

Centre pillar

10 ± 2 N·m

Second seat belt

2

<Rear>

<Front>

AB

Side impact sensor (front)
removal steps

<<A>>

1.

Negative battery cable connection

•

Centre pillar trim lower (Refer to
GROUP 52A, Interior trim

P.52A-10

.)

•

Seat belt pre-tensioner (Refer to
GROUP 52A, Front seat belt

P.52A-35

.)

2.

Side impact sensor (front)
Side impact sensor (front)
installation steps

>>A<<

•

Pre-installation inspection

>>B<<

2.

Side impact sensor (front)

Side impact sensor (front)
removal steps (Continued)

SIDE IMPACT SENSOR

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-237

NOTE: The figure shows the side impact sensor
(LH).

REMOVAL SERVICE POINT
<<A>>NEGATIVE BATTERY CABLE
DISCONNECTION

DANGER

Wait at least 60 seconds after disconnecting
the battery cable before doing any further
work (Refer to

P.52B-7

).

WARNING

Battery posts, terminals and related
accessories contain lead and lead
compounds. WASH HANDS AFTER
HANDLING.

Disconnect the negative battery cable from the
battery and tape the terminal to prevent accidental
connection and air bag(s) deployment.

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

Even new side impact sensor requires inspection
before installation (Refer to the previous item
"INSPECTION"

P.52B-238

).

>>B<< SIDE IMPACT SENSOR
INSTALLATION

WARNING

The side impact sensor, unless properly
installed, does not operate properly, thereby
resulting in serious injury or death of the
vehicle's occupants.

>>C<< POST-INSTALLATION
INSPECTION

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

•

Seat belt pre-tensioner (Refer to
GROUP 52A, Front seat belt

P.52A-35

.)

•

Centre pillar trim lower (Refer to
GROUP 52A, Interior trim

P.52A-10

.)

1.

Negative battery cable connection

>>C<<

•

Post-installation inspection
Side impact sensor (rear)
removal steps

<<A>>

1.

Negative battery cable connection

•

Third seat assembly (Refer to
GROUP 52A, Third seat

P.52A-33

.)

•

Quarter trim lower (Refer to
GROUP 52A, Interior trim

P.52A-10

.)

2.

Side impact sensor (rear)
Side impact sensor (rear)
installation steps

>>A<<

•

Pre-installation inspection

>>B<<

2.

Side impact sensor (rear)

•

Quarter trim lower (Refer to
GROUP 52A, Interior trim

P.52A-10

.)

•

Third seat assembly (Refer to
GROUP 52A, Third seat

P.52A-33

.)

1.

Negative battery cable connection

>>C<<

•

Post-installation inspection

Side impact sensor (front)
installation steps (Continued)

ACX00583

Insulating tape

Battery

Battery cable (–)

AC

SIDE IMPACT SENSOR

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-238

3. Does the SRS warning lamp illuminate for about 7

seconds, and then remain extinguished for at
least 5 seconds after turning OFF?

4. If no, refer to troubleshooting (Refer to

P.52B-13

).

INSPECTION

M1524004700347

WARNING

If any problems, replace the sensor.

1. Check the side impact sensor and bracket for

dents, cracks or deformation.

2. Check the connector for damage, and terminal for

deformation.

3. Check the centre pillar and the quarter inner panel

for deformation or corrosion.

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

P.52B-13

) .

AC312486

SRS warning lamp

AB

AC302574

AC311614

AC312491

Centre pillar

Second
seat belt

Side impact
sensor (rear)

Side impact
sensor (front)

<Front>

<Rear>

AB

SEAT BELTS WITH PRE-TENSIONER

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-239

SEAT BELTS WITH PRE-TENSIONER

REMOVAL AND INSTALLATION

M1524004100408

WARNING

•

Never attempt to disassemble or repair the seat belt pre-tensioner. If faulty, replace it.

•

Be extremely careful when handling the seat with pre-tensioner. Do not subject it to
shocks, drop it, bring it close to strong magnets or allow contact with water, grease or oil.
Always replace it with a new part if any dents, cracks or deformation is found.

•

Do not place anything on top of the seat belt pre-tensioner.

•

Do not expose the seat belt pre-tensioner to temperatures over 90

°

C.

•

After operating the seat belt pre-tensioner, replace the seat belt pre-tensioner with a new
part.

•

Gloves and protective goggles should be worn when handling a seat belt pre-tensioner
once it has been used.

•

If disposing of a seat belt with pre-tensioner which has not yet been operated, its seat belt
pre-tensioner should be operated first before disposal (Refer to

P.52B-246

).

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

AC312586

5

3

2

4

44 ± 10 N·m

44 ± 10 N·m

1

AB