Mitsubishi Outlander XL. Manual - part 1303

Parts name

Functional description

｠

The lock switch on the keyless operation key is pressed from
inside the car.

｠

The lock switch on the keyless operation key is pressed when
the door is ajar.

Receiver antenna module

Receives  the  operation  signals  from  the  lock/unlock  switches
and panic alarm switch on the keyless operation key, and the air
pressure signal from the TPMS transmitter, and then converts
them into data and sends them 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,  flashes  or
activates*2the warning indicator or warnig light. Warning symbol
and message is additionally displayed on the multi information
display

ETACS-ECU

Communicates  with  KOS-ECU  via  CAN.  Send  ignition  switch
status. Receives the door lock/unlock request from KOS-ECU,
outputs the lock/unlock signal, and flashes the turn signal light
to inform the driver that the doors are locked/unlocked.

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.

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 coutinuously
illuminated for TPMS malfunction warning.

42B-6

KEYLESS OPERATION SYSTEM (KOS)

GENERAL INFORMATION

System configuration

ZC600946

Door lock actuator

ETACS-ECU

Turn-signal light

Steering unit

Push switch

Steering lock unit

Unlock sensor and  
lock switch  
(driver's side door)

Unlock sensor and  
lock switch  
(passenger's side door)

Liftgate lock release 
handle and lock switch 
(liftgate)

Outer buzzer

Receiver antenna module

ECM

Combination meter  
(Multi center display, TPMS warning light )

KOS-ECU

Lock switch

Unlock switch

Emergency key (incorporating a transponder)

Indicator light

Radio
frequency 
signal

CAN-B  
communi- 
cation

Front

Rear:  
Driver's side

Driver's side

Passenger's side

Liftgate

Rear:  
Passenger's side

CAN-C comm- 
unication

0001

Liftgate lock actuator

Keyless operation key

Exterior transmitter  
antenna assembly

Interior transmitter  
antenna assembly

Radio
frequency 
signal

Radio 
frequency 
signal

Radio 
frequency 
signal

Front tire (LH)

Front tire (RH)

Rear tire (LH)

Rear tire (RH)

TPMS transmitter

CPU

Transmission   

circuit

Antenna

Pressure  
sensor

Acc. 
sensor

Battery

ABS or ASC-ECU

Dome light,  
Ignition key cylinder  
illumination light 

Horn

KEYLESS OPERATION SYSTEM (KOS)

42B-7

GENERAL INFORMATION

SYSTEM OPERATION

DOOR ENTRY FUNCTION

M24200100004USA0000010000

ZC600226

ZC600259

ZC600218

0000

Front door outside handle (driver's side)

Front door outside handle (passenger's side)

Liftgate lock 
release handle

Keyless operation key

42B-8

KEYLESS OPERATION SYSTEM (KOS)

SYSTEM OPERATION

ZC600227

AC505247

AC505250

AC506192

AC505249

0000

B

A

View A

View B

Lock switch

Lock switch

License plate light

Unlock sensor

Liftgate lock 
release handle

Liftgate lock release handle

Door outside handle (Driver’s side, front passenger’ side)

When  a  driver  carrying  a  keyless  operation  key
presses  a  lock  switch  on  the  driver-side/front
passenger-side door outside handle or on the liftgate
lock  release  handle,  unlock  sensor  on  the  door
outside handle, or liftgate lock release handle (switch)
(Refer  to  GROUP  42A,  Door  and  Liftgate  Lock P.
42A-12),  the  keyless  operation  key  and  KOS-ECU
communicate  to  certify*  the  keyless  operation  key.
When  KOS-ECU  certifies  the  registered  keyless
operation key within 70 cm (28 inches) in radius from
these  switches  and  sensors  on  outer  side  of  the
vehicle,  it  requests  ETACS-ECU  to  lock/unlock  the
doors. (The key may not be certified even it is within
this range, when it is positioned too high or too low).

NOTE: 

*: In the communication for certification

of the keyless operation key, KOS-ECU judges if
the keyless operation key ID (specified to keyless
operation key) contained in the response data from
the keyless operation key coincides with the ID
that has been stored in ECU by registration
operation. The keyless operation key sends the
response to KOS-ECU only when the KOS ID (specific

to KOS-ECU) contained in the received data
coincided with the stored ID. In the beginning of
the communication for certification, KOS-ECU
creates a encrypted code calculation factor in
random number, and sends it to the keyless
operation key together with the transmit data. The
keyless operation key calculates the code by using
the received factor, and sends the result to KOS-
ECU together with the response data. KOS-ECU
determines that the communication is established
only when the code calculation results of the both
parties coincided.

UNLOCKING OPERATION OF DOOR

ENTRY FUNCTION

The  keyless  operation  key  and  KOS-ECU
communicate  to  certify  the  keyless  operation  key
when  the  unlock  sensor  on  the  driver-side/front
passenger-side door outside handle or the liftgate lock
release  handle  (switch)  is  turned  ON.  When  KOS-
ECU certifies the registered keyless operation key on
the outer side of the vehicle, it requests ETACS-ECU
to unlock the doors.

KEYLESS OPERATION SYSTEM (KOS)

42B-9

SYSTEM OPERATION