Mitsubishi Evolution X. Manual - part 742

SEAT BELTS WITH PRE-TENSIONER

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-415

<<C>> SEAT BELT WITH PRE-TENSIONER 
REMOVAL

CAUTION

When discarding the seat belt with pre-tensioner, discard 
after operating the pre-tensioner as specified in the ser-
vice procedure (Refer to 

P.52B-417

).

INSTALLATION SERVICE POINTS

.

>>A<< PRE-INSTALLATION INSPECTION

WARNING

Dispose of seat belt pre-tensioner only according to 
the specified procedure (Refer to 

P.52B-417

).

1. When installing the new seat belt pre-tensioner, refer to 

“INSPECTION” (

P.52B-416

).

2. Connect the negative (

−) battery cable.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
3. Connect scan tool MB991958 to the data link connector.
4. Turn the ignition switch to the “ON” position.
5. Check DTCs using scan tool MB991958 to ensure entire 

SRS operates properly.
At this time, check that no DTC except B1C3A and B1C49 
are set.

DANGER

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

P.52B-25

).

WARNING

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

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

Disconnect the negative (

−) battery cable and tape the 

terminal to prevent accidental connection and seat belt 
pre-tensioner operation.

.

>>B<< PRE-TENSIONER CONNECTOR 
CONNECTION

Connect the pre-tensioner connector then securely lock the 
locking button of the harness-side connector.

.

>>C<< POST-INSTALLATION INSPECTION

1. Reconnect the negative (

−) battery cable.

2. Turn the ignition switch to the “ON” position.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

SEAT BELTS WITH PRE-TENSIONER

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-416

3. Does the "SRS" warning light illuminate for approximately 

seven seconds, and go out?

4. If yes, the SRS system is functioning properly. If not, refer to 

P.52B-31

.

INSPECTION

M1524004200621

.

SEAT BELT WITH PRE-TENSIONER CHECK

WARNING

•

If any component damage is found during the fol-
lowing inspection, replace the seat belt with 
pre-tensioner with a new one. Dispose of the old 
one according to the specified procedure (Refer to 

P.52B-417

).

•

Never attempt to measure the circuit resistance of 
the seat belt pre-tensioner even if you are using 
the specified tester. If the circuit resistance is mea-
sured with a tester, accidental seat belt pre-ten-
sioner operation will result in serious personal 
injury.

1. Check seat belt pre-tensioner for dents, cracks or 

deformation.

2. Check the connectors for damage, the terminals for 

deformation, and the harness for binding.

AC709154

SRS warning light

AB

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-417

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER 

DISPOSAL PROCEDURES

M1524001201573

Before disposing of an air bag or a vehicle equipped 
with an air bag, follow the procedures below to 
deploy the air bag.

UNDEPLOYED AIR BAG MODULE DISPOSAL

Required Special Tools:

• MB992102: Air Bag Inflation Adapter Harness

• MB991885: Adapter Harness

WARNING

•

If the vehicle is to be scrapped or otherwise dis-
posed of, deploy the air bags and operate the seat 
belt pre-tensioners inside the vehicle. If the vehicle 
will continue to be used and only the air bag mod-
ules and seat belt pre-tensioner are to be disposed 
of, deploy the air bags and operate the seat belt 
pre-tensioners outside the vehicle.

•

Since a large amount of smoke is produced when 
the air bag is deployed and the seat belt pre-ten-
sioner is operated, avoid residential areas when-
ever possible.

•

Since there is a loud noise when the air bags are 
deployed and when the seat belt pre-tensioners 
are operated, avoid residential areas whenever 
possible. If anyone is nearby, give warning of the 
impending noise.

•

Suitable ear protection should be worn by person-
nel performing these procedures or by people in 
the immediate area.

.

DEPLOYMENT INSIDE THE VEHICLE (WHEN 
DISPOSING OF A VEHICLE) <DRIVER'S AIR BAG 
MODULE>

1. Move the vehicle to an isolated spot.

DANGER

Wait at least 60 seconds after disconnecting the bat-
tery cables before doing any further work (Refer to 

P.52B-25

).

WARNING

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

2. Disconnect the negative (

−) and positive (+) battery cables 

from the battery terminals, and then remove the battery from 
the vehicle.

3. Remove the cover (Refer to 

P.52B-386

).

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-418

4. Slide the outer housing of the driver’s air bag module 

connector in the arrow direction shown, and disconnect the 
connector.
NOTE: When the driver's air bag module connector is dis-
connected from the inflator, the four pins of inflator connec-
tor are automatically shorted. This prevents the 
unintentional deployment of driver's air bags caused by the 
static or others.

5. Connect deployment wires, each 6 meters (20 feet) or 

longer, to the two leads of special tool MB992102, and cover 
the connections with insulator tape. The other ends of the 
deployment wires should be connected to each other 
(short-circuited), to prevent sudden unexpected deployment 
of the air bag module.
NOTE: This prevents the air bags from being unintentionally 
deployed because of the static and others.

6. Connect the special tool MB992102 to the driver's air bag 

module, and then pull out the deployment wire to outside the 
vehicle.

WARNING

If the windshield glass is scratched, air bag deploy-
ment could cause it to crack and fly out of the vehicle, 
so always put a cover over the vehicle.

7. To suppress the sound as much as possible, completely 

close all door windows, close the doors and put a cover on 
the vehicle.

AC607302

AC600868

Outer housing of the driver's air bag 
module connector

Horn connector

Lower column 
cover

Driver's air bag 
module connector 
(4-pin, yellow)

AC

AC502991AI

MB992102

Connection

Deployment wires

Insulator tape

6 m (20 ft) or longer 

AC506475 AC

MB992102

Lower column 
cover

Deployment wires

ACX01308AI

Cover

Deployment wire
6 m (20ft) or longer