Mitsubishi Outlander (2013+). Manual - part 68

GENERAL INFORMATION

ELECTRIC POWER STEERING (EPS)

37-2

GENERAL INFORMATION

M2370000102158

An electrical power steering system has been 
adopted.

FEATURES

• Improved fuel consumption by reduction of 

engine load, and weight saving by decrease of 
the number of parts have been achieved with the 
introduction of the electric power steering system.

• 3-spoke type steering wheel integrated with an 

SRS air bag has been adopted.

• Shock absorbing mechanism has been adopted 

with the steering column shaft assembly.

SPECIFICATIONS

CONSTRUCTION DIAGRAM

Item

Specification

Steering wheel

Type

3-spoke type

Outside diameter mm

370

Maximum number of turns

3.3

Power steering type

Electrical powered type

Steering gear

Type

Rack and pinion type

Stroke ratio (Rack stroke/Steering 
wheel maximum number of turns) 
mm/rev

43.69

Rack stroke mm

144

Steering angle

Inner wheel

38

° 50'

Outer wheel (reference value)

32

° 20'

ACA00055AC

Steering wheel assembly

Steering column shaft assembly

Electric power steering-ECU (EPS-ECU)

Motor

Steering gear and linkage

Front axle crossmember

Torque sensor

STEERING WHEEL

ELECTRIC POWER STEERING (EPS)

37-3

STEERING WHEEL

M2370001001474

The steering wheel is designed to improve operabil-
ity, safety and maintainability and has the following 
features:

• The 3-spoke type has been adopted. The steer-

ing wheel made of urethane or leather has been 
adopted.

• Steering wheel remote control switch (steering 

wheel audio remote control switch, steering 
wheel voice control switch) and cruise control 
switch are available on some models. 

• It incorporates an SRS airbag to protect the driver 

in the event of a frontal collision (single inflator).

ACB05486

<Urethane steering wheel>

Section A - A

<Leather steering wheel>

A

A

A

A

Inflator

Driver's air bag 
module

AB

Driver's air bag module

Driver's air bag module

Cruise control switch

Bezel cover

Steering wheel 
remote control 
switch

Bezel cover

STEERING SHAFT AND COLUMN

ELECTRIC POWER STEERING (EPS)

37-4

STEERING SHAFT AND COLUMN

M2370002001046

The steering shaft and column, which informs the 
EPS-ECU of steering effort on the steering wheel, 
consist of a torque sensor and motors, etc. They are 
designed to improve safety, and has the following 
features:

• Shock absorbing mechanism has been adopted 

to the steering column which absorbs the impact 
energy at collision and provides safety to the 
driver.

• Collapsible steering column has been employed. 

During a collision, the steering wheel moves for-
ward.

• The adoption of the collapsible steering column 

construction prevents the fallaway sections from 
being affected by the impact at primary collision, 
and stabilises the shock absorbing capability. 
Also, the secondary collision impact is partially 
absorbed by the collapsible steering column con-
struction, enhancing the collapse performance.

IMPACT-ABSORBING MECHANISM

PRIMARY COLLISION

ACB05495 AB

One-way capsule

Motor

Torque sensor

Tilt lever

Intermediate shaft

Steering column shaft

Contracting mechanism

A

View A

ACB05496AB

Before collision

After collision

Intermediate shaft (A)

Intermediate shaft (B)

Intermediate shaft (B)

Intermediate shaft (A)

ELECTRIC POWER STEERING

ELECTRIC POWER STEERING (EPS)

37-5

When a vehicle crash occurs and the intermediate 
shaft is loaded from the gearbox side, the intermedi-
ate shaft (A) is forced into the intermediate shaft (B) 
to absorb an impact load. By this, a rearward out-
thrusting of steering column is prevented.

SECONDARY COLLISION

When the driver's body falls against the steering 
wheel via the deployed air bag, the column bracket 
moves forwards by deforming the rivet pin of the 
one-way capsule.

ELECTRIC POWER STEERING

GENERAL INFORMATION

M2370000102169

Vehicle-speed sensitive electric power steering 
(whole range type) has been adopted. This system 
allows a light steering force during stationary steer-
ing manoeuvre or low speed driving, and a moderate 
steering force during medium or high speed driving.
For vehicles with this system, the EPS-ECU controls 
the motor current according to the vehicle speed and 
steering force of the steering wheel.

CAN

*

 communication has been adopted in order to 

communicate with another ECUs for obtaining nec-
essary information related to this control, achieving 
wiring harness saving and secure data communica-
tion.

NOTE: 

*

: For more information about CAN (Control-

ler Area Network), refer to GROUP 54C, General 
Information .

SPECIFICATIONS

ACB03550

Column 
bracket

Column
pipe outer

One-way 
capsule

Resin pin

Before collision

After collision

Sectional view B - B

B

B

A

A

Sectional view A - A

AB

Column
pipe inner

Item

Specification

Motor

Type

Permanent magnetic field type

Rated voltage V

DC 12

Rated current Arms

82

Torque sensor

Type

Noncontact type hole IC type

EPS-ECU

Control type

Microcomputer control (32 bit)

Rated voltage V

DC 12