Mitsubishi Evolution X. Manual — part 818

STEERING WHEEL SENSOR

TSB Revision

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-279

STEERING WHEEL SENSOR

REMOVAL AND INSTALLATION

M1355005100221

CAUTION

• Always align the center of the clock spring before installing the steering wheel sensor. Otherwise,

the sensor can be damaged.

• If the center of the clock spring is not correctly aligned, the steering wheel may not be turned fully

or the cable inside the clock spring may be broken, causing the SRS air bag to be inoperative or
operated incorrectly.

• Before removing the steering wheel assembly and driver's air bag module, always refer to GROUP

52B

− Service Precautions

P.52B-25

and Driver's Air bag Module and Clock Spring

P.52B-386

• When the steering wheel sensor is replaced, always carry out calibration to make ASC-ECU learn

the neutral point. (Refer to

P.35C-267

Pre-removal operation
• Position the front wheels in a straight ahead direction.

• Driver's air bag module removal (Refer to GROUP 52B −

Driver's Air bag Module and Clock Spring

P.52B-386

• Steering wheel assembly removal (Refer to GROUP 37 −

Steering Wheel

P.37-22

• Steering column upper cover and steering column lower

cover removal (Refer to GROUP 37

− Steering Shaft

P.37-26

• Paddle shift assembly removal (Refer to GROUP 37 −

Steering Shaft

P.37-26

.) <Vehicles with paddle shift>

Post-installation operation
• Paddle shift assembly installation (Refer to GROUP 37 −

Steering Shaft

P.37-26

.) <Vehicles with paddle shift>

• Steering column upper cover and steering column lower

cover installation (Refer to GROUP 37

− Steering Shaft

P.37-26

• Steering wheel assembly installation (Refer to GROUP 37

− Steering Wheel

P.37-22

• Driver's air bag module installation (Refer to GROUP 52B

− Driver's Air bag Module and Clock Spring

P.52B-386

• Performing the steering wheel calibration (Refer to

P.35C-267

AC707231

2.5 ± 0.5 N·m
23 ± 4 in-lb

Removal steps

1. column switch assembly

2. Steering wheel sensor

STEERING WHEEL SENSOR

TSB Revision

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-280

INSTALLATION SERVICE POINT

>>A<< NEUTRAL POSITIONING OF STEERING
WHEEL SENSOR

CAUTION

• Always align the center of the clock spring before

installing the steering wheel sensor. Otherwise, the
sensor can be damaged.

• If the center of the clock spring is not correctly aligned,

the steering wheel may not be turned fully or the cable
inside the clock spring may be broken, causing the
SRS air bag to be inoperative or operated incorrectly.

1. Align the mating marks of the clock spring.

(1) Turn the clock spring clockwise fully.
(2) Turn the clock spring counterclockwise approximately

three and 3/4 turns to align the mating marks.

(3) Check that the white roller is visible from the window for

checking the neutral point with the mating marks being
aligned.
NOTE: If the white roller is invisible, the neutral point is
not positioned correctly.

CAUTION

Always align three mating marks of the steering wheel
sensor simultaneously as shown in the figure. If these mat-
ing marks are not aligned correctly, the steering wheel
sensor may be damaged.
2. Align three mating marks of the steering wheel sensor

simultaneously as shown in the figure.
<Alignment of mating marks>

(1) Check the window for inspecting the neutral position of

the steering wheel sensor. If the mating marks cannot be
seen from the window, align the mating marks as shown
in the figure.

(2) Install the steering wheel sensor to the column switch

assembly, maintaining the neutral position correctly.
NOTE: A new steering wheel sensor has a lock clip for
preventing the rotation of (fixing) the steering wheel sen-
sor. After installing the column switch assembly, remove
this lock clip.

(3) Install the column switch assembly to the vehicle,

maintaining the neutral position correctly.

AC705283AB

Window for
checking the
neutral point

Neutral position mark

AC701416 AB

Steering
wheel sensor

; Neutral position mark

For the vehicles front

For vehicles back

Lock clip

35A-1