Mitsubishi Outlander GS45X. Manual — part 1106

GENERAL INFORMATION

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-3

CONSTRUCTION DIAGRAM

ACA02748

AC506891

AC611960

AC505247

Engine control module

Antenna and Outer tone alarm assembly
<Exterior transmitter
antenna assembly (Liftgate),
Outer tone alarm>

KOS-ECU

AB

Lock/unlock switch

(Driver's side door, Passenger's side door)

Lock/unlock switch

Lock/unlock switch
(Front passenger's side door)

Exterior transmitter
antenna assembly
(Front passenger's side)

Interior transmitter
antenna assembly (Rear: RH)

Interior transmitter
antenna assembly
(Front)

TPMS transmitter
(Tire pressure sensor)

TPMS transmitter
(Tire pressure sensor)

TPMS transmitter
(Tire pressure sensor)

TPMS transmitter
(Tire pressure sensor)

ABS-ECU or
ASC-ECU

Exterior transmitter
antenna assembly
(Driver's side)

Lock/unlock switch
(Driver's side door)

ETACS-ECU

Steering lock
(Push switch,
Steering lock unit)

IG knob cap

IG knob

Receiver
antenna module

Ignition switch

Front of vehicle

Lock switch

Liftgate lock release handle

GENERAL INFORMATION

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-4

.

AC901509

LOW
TIRE PRESSURE

LOW TIRE PRESSURE

AB

Multi-information display
(built in combination meter)

TPMS
warning light

<Vehicles without color
liquid crystal display>

<Vehicles with color
liquid crystal display>

TPMS
warning light

Multi-information display
(built in combination meter)

AC709981AB

Emergency key

Emergency key

Keyless operation key

Emergency key

Lock button

Unlock button

Indicator light

Panic button

GENERAL INFORMATION

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-5

Main components and functions

Parts name

Functional description

KOS-ECU

Controls KOS by using the following inputs/outputs and
communications.

• Input from the lock/unlock switch on each door, input from

the push switch on the IG knob

• Communications with ETACS-ECU, ECM, ABS or ASC-ECU

and combination meter via CAN

• Wire communication with the steering lock unit

• Wireless communication with the keyless operation key via

the receiver antenna module and interior/exterior transmitter
antennas

• Wireless communication with the TPMS transmitter

• Output to the outer tone alarm

Steering lock (incorporates push switch
and steering lock unit)

The steering lock has two unlocking mechanisms; a mechanical
mechanism that uses an emergency key and an electrical
mechanism. In the electrical unlocking mechanism, the steering
lock communicates with KOS-ECU via wire, and when
requested by KOS-ECU, the steering lock unlocks for two
seconds.

Keyless operation key (incorporates
emergency key)

• The keyless operation key receives signals sent from each

interior/exterior transmitter antenna, certifies the keyless
operation key ID code, calculates the encrypted code, and
sends the reply data signal to KOS-ECU via the receiver
antenna module. When the lock/unlock switch on the
keyless operation key is pressed, corresponding signal is
sent to KOS-ECU via the receiver antenna module.

• If two or more keyless operation keys registered in

KOS-ECU respond at the same time, their signals would
interfere. To avoid this interference, each signal from
KOS-ECU is given the priority

*1

data, and the keyless

operation keys respond in accordance with this priority.

Lock/unlock switch

Driver's door

• Locks all the doors when a driver carrying the keyless

operation key presses the lock/unlock switch on the front
door outside handle .

• The lock/unlock switch on the driver’s front door outside

handles unlock driver’s the door when a driver carrying the
keyless operation key pulls the driver’s door outside handle.

Front passenger's
door

Liftgate lock release handle

Locks all the doors and the liftgate when a driver carrying the
keyless operation key presses the lock switch on the front door
outside handle or on the liftgate lock release handle.

Lock switch

Liftgate

Locks all the doors and the liftgate when a driver carrying the
keyless operation key presses the lock switch on the front door
outside handle or on the liftgate lock release handle.

Exterior transmitter
antenna assembly

Driver's side

Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key.

Front passenger's
side

Interior transmitter
antenna assembly

Front

Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key.

Rear: RH

GENERAL INFORMATION

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-6

NOTE:

*1

: When registering the keyless operation

keys, KOS-ECU numbers each key (1 to 4) in the
order they are registered (initial priority). This priority
is renewed each time the doors are locked/unlocked
and the IG knob is pressed. For example, when only
keys 1 and 3 have responded to the signal sent from

KOS-ECU, the new priority of the keys would be
1-3-2-4. When keys 3 and 4 have responded, then
the priority of the keys becomes 3-4-1-2.
NOTE:

*2

: Illuminates for tire pressure warning.

Flashes for about 1 minute and then continuously
illuminated for TPMS malfunction warning.

Antenna & tone
alarm assembly

Exterior transmitter
antenna assembly
(liftgate)

Converts the data output from KOS-ECU via wire into a signal,
and sends it to the keyless operation key.

Outer tone alarm

The outer tone alarm sounds when:

• The doors are locked or unlocked by the door entry function.

• The keyless operation key is brought out of the vehicle when

the IG knob is in the "LOCK" (OFF) position and the push
switch is in other than the ON position.

• The lock/unlock switch of the front door outside handle is

pressed when the IG knob is in the "LOCK" (OFF) position
and the push switch is in other than the ON position.

• The lock button on the keyless operation key is pressed from

inside the car.

• The lock button on the keyless operation key is pressed

when the door is ajar.

• The lock/unlock switch of the front door outside handle is

pressed when the keyless operation key is inside the
vehicle.

• The lock/unlock switch of the front door outside handle is

pressed when the door is not properly closed.

Receiver antenna module

Receives the operation signals from the lock/unlock buttons
and panic button on the keyless operation key as well as the
tire pressure signal from the TPMS transmitter and keyless
operation key ID data which is necessary for engine start. Then,
sends the data to KOS-ECU. Receives the keyless operation
key ID data which is necessary for the engine start using the
emergency key, and then sends the data to KOS-ECU.

TPMS transmitter

Measure tire pressure directly, then send radio frequency signal
to receiver antenna module.

Combination meter (Multi information
display, TPMS warning light)

Communicates with KOS-ECU via CAN. Receives the warning
request or warning information from KOS-ECU, activates

*2

the

warning light. Warning symbol and message is additionally
displayed on the multi information display

ETACS-ECU

Communicates with KOS-ECU via CAN. By the door
lock/unlock request or panic alarm request from KOS-ECU,
ETACS-ECU outputs the lock/unlock signal or panic alarm
signal. When the door lock/unlock signal is output, ETACS-ECU
flashes or illuminates the turn signal light and dome light to
notify that the lock/unlock operation is performed.

ECM

Communicates with KOS-ECU via CAN. Permits/inhibits the
engine starting and controls the engine operation. Send
atmospheric pressure data.

ABS or ASC-ECU

Communicates with KOS-ECU via CAN. Sends the vehicle
speed data.

Parts name

Functional description