Mitsubishi Evolution X. Manual - part 818

 

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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

AB

1

2.5 ± 0.5 N·m
23 ± 4 in-lb

Removal steps 

>>

A

<<

1. column switch assembly

>>

A

<<

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.

<Alignment of mating marks>

(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

GROUP 35A

BASIC BRAKE 

SYSTEM

CONTENTS

GENERAL INFORMATION . . . . . . . .

35A-2

GENERAL SPECIFICATIONS . . . . . .

35A-2

SERVICE SPECIFICATIONS. . . . . . .

35A-3

LUBRICANTS  . . . . . . . . . . . . . . . . . .

35A-4

BASIC BRAKE SYSTEM DIAGNOSIS

35A-4

INTRODUCTION TO BASIC BRAKE 

 

SYSTEM DIAGNOSIS  . . . . . . . . . . . . . . . . 

35A-4

BASIC BRAKE SYSTEM DIAGNOSTIC 
TROUBLESHOOTING STRATEGY . . . . . . 

35A-4

SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 

35A-4

SYMPTOM PROCEDURES . . . . . . . . . . . . 

35A-5

SPECIAL TOOLS. . . . . . . . . . . . . . . .

35A-12

ON-VEHICLE SERVICE. . . . . . . . . . .

35A-12

BRAKE PEDAL CHECK AND 

 

ADJUSTMENT  . . . . . . . . . . . . . . . . . . . . . . 

35A-12

BRAKE BOOSTER OPERATION CHECK . 

35A-15

CHECK VALVE OPERATION CHECK . . . . 

35A-16

BLEEDING  . . . . . . . . . . . . . . . . . . . . . . . . . 

35A-16

BRAKE FLUID LEVEL SWITCH CHECK . . 

35A-17

BRAKE PAD CHECK  . . . . . . . . . . . . . . . . . 

35A-17

BRAKE PAD REPLACEMENT  . . . . . . . . . . 

35A-18

DISK BRAKE ROTOR CHECK . . . . . . . . . . 

35A-21

BRAKE DRAG FORCE CHECK . . . . . . . . . 

35A-24

BRAKE PEDAL. . . . . . . . . . . . . . . . . .

35A-25

REMOVAL AND INSTALLATION  . . . . . . . . 

35A-25

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

35A-26

STOPLIGHT SWITCH CHECK . . . . . . . . . . 

35A-26

BRAKE PEDAL DISTORTION CHECK . . . . 

35A-26

MASTER CYLINDER ASSEMBLY AND 
BRAKE BOOSTER ASSEMBLY  . . . .

35A-27

REMOVAL AND INSTALLATION  . . . . . . . . 

35A-27

FRONT DISC BRAKE ASSEMBLY . .

35A-33

REMOVAL AND INSTALLATION  . . . . . . . . 

35A-33

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

35A-34

DISASSEMBLY AND ASSEMBLY  . . . . . . . 

35A-35

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

35A-36

REAR DISC BRAKE ASSEMBLY  . . .

35A-38

REMOVAL AND INSTALLATION  . . . . . . . . 

35A-38

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

35A-39

DISASSEMBLY AND ASSEMBLY  . . . . . . . 

35A-40

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

35A-41

GENERAL INFORMATION

TSB Revision

BASIC BRAKE SYSTEM

35A-2

GENERAL INFORMATION

M1351000101119

The brake system has high reliability and durability, 
and provides an exceptional braking performance.

FEATURES

.

IMPROVED BRAKING PERFORMANCE

• In addition to the 10-inch through bolt type single 

brake booster, the small and long stroke-type 
master cylinder is adopted to provide rigidity, to 
reduce weight, and to secure the assist force.

• Brembo™ 18-inch 4-pot front ventilated disk 

brakes and Brembo

™ 17-inch 2-pot rear venti-

lated disk brakes are adopted to provide stable 
braking force and improved braking feel.

• To the front, two-piece structure brake disk is 

installed. <GSR: Option, MR: Standard>

.

IMPROVED STABILITY

• Front- and rear-wheel X-type brake line layout is 

used.

• The brake pedal retreat suppression mechanism 

that suppresses the retraction of brake pedal sur-
face upon a frontal collision is adopted.

• To the front brake and rear brake, the brake pads 

with audible wear indicator are adopted which 
warn the driver of the wear limit.

CONSTRUCTION DIAGRAM

AC708805AB

Brake booster

Master cylinder

Front disc brake

Reserve tank

Rear disc brake

Brake pedal

Hydraulic unit

GENERAL SPECIFICATIONS

M1351000200599

Item

Specification

Master 
cylinder

Type

Tandem type

I.D. mm (in)

23.81 (0.94)

Brake 
booster

Type

Vacuum type, single

Effective dia. of power cylinder mm (in)

252 (10)

Boosting ratio

5.5 {Pedal depression force: 663 N (149 lb)}

 

 

 

 

 

 

 

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