Mitsubishi Evolution X. Manual — part 732

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-375

CLOCK SPRING

1. Check the clock spring connectors and protective tube for

damage, and the terminals for deformation.

2. Visually check the case for damage.

.

SIDE IMPACT SENSOR

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

pillar.

2. Check that there is no denting, breakage or bending of the

side impact sensor.

3. Check that there is no harness crimping, connector damage

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

.

SEAT SLIDE SENSOR

1. Check that there is no connector damage, bent terminals or

harness crimping.

2. Check the installation of the seat slide sensor.

.

AC306766AJ

Case

Protective tubes

AC605684

Center pillar

AD

Side impact sensor

AC709454

AC609298

A

AB

Seat slide sensor

Shield plate

View A

POST-COLLISION DIAGNOSIS

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-376

OCCUPANT CLASSIFICATION-ECU AND WEIGHT
SENSOR

1. Check the occupant classification-ECU case and weight

sensor for dents, cracks or deformation.

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

deformation.

3. Check the installation of the occupant classification-ECU

and weight sensor.

4. Check the diagnostic trouble code of the occupant

classification-ECU and replace the slide adjuster (RH) if
DTC B1BA7 is set.

.

CURTAIN AIR BAG MODULE

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.

.

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

−

Steering Column Shaft Assembly Shock Absorbing
Mechanism Check).

.

SEAT BELT WITH PRE-TENSIONER

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

deformation.

3. Check that the unit is installed correctly to the vehicle body.

.

HARNESS CONNECTOR

Check the harnesses for binding, the connectors for damage,
poor connection, and the terminals for deformation (Refer to

P.52B-25

).

AC709455

Weight
sensor

Weight
sensor

Occupant
classification-ECU

AB

AC609229

Inflator

AF

INDIVIDUAL COMPONENT SERVICE

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-377

INDIVIDUAL COMPONENT SERVICE

M1524002900969

WARNING

•

If heat damage occurs during paint work,
remove the SRS-ECU, the air bag mod-
ules, the clock spring, front seats, impact
sensor and the seat belt with pre-ten-
sioner. Recheck the SRS system operabil-
ity after reinstalling them.

•

SRS-ECU, air bag modules, clock
spring, front seats, impact sensor: 93

°

C (200

°

F) or more

•

Seat belt with pre-tensioner: 90

°

C

(194

°

F) or more

•

If the SRS components are removed for
the purpose of inspection, 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, diagnosis, etc.,
follow the appropriate procedure in this section.
(Front impact sensor: refer to

P.52B-380

, SRS-ECU:

refer to

P.52B-383

, Air bag modules and clock

spring: refer to

P.52B-386

, Side-airbag module: refer

to GROUP 52A, Front Seat Assembly

P.52A-24

,

Knee air bag module: refer to

P.52B-398

, Side

impact sensor: refer to

P.52B-402

, Curtain air bag

module: refer to

P.52B-409

, Seat belt with pre-ten-

sioner: refer to

P.52B-413

).

ON-VEHICLE SERVICE

TSB Revision

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-378

ON-VEHICLE SERVICE

ACCURACY CHECK OF OCCUPANT CLASSIFICATION SENSOR

M1524025100135

CAUTION

The following precaution must be observed when execut-
ing accuracy testing and calibration.

• Perform the occupant classification sensor calibration

at room temperature. (Proposal: 20

± 15° C (68 ± 27° F))

(Before the calibration, place the occupant classifica-
tion sensor more than 30 minutes at room tempera-
ture.)

• Do not apply any load or vibration while the weight

check and the calibration is performed.

• Perform the weight check and the calibration after seat

components are all assembled.

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.
1. Connect scan tool MB991958 to the data link connector.

2. To execute accuracy check and calibration, operate scan

tool MB991958 (M.U.T.-III Sub Assembly) as follows.

(1) Select "OCM".
(2) Select "Special Function".
(3) Select "Zero Calibration & System Test".
(4) The start of the zero calibration.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

Zero Calibration & System Test

Please select function.

System Select

OCM

Special Function

Special Function

NXXXXXXXXX

AC609603

AB