Mitsubishi 2013 Outlander Service Manual page 263

When a driver carrying a keyless operation key
presses the lock/unlock switch on the front door out
side handle (driver's side, front passenger's side) or
the lock switch of tailgate lock release handle, the
KOS-ECU communicates with the keyless operation
key to authorise* the keyless operation key. When
the KOS-ECU senses the registered keyless opera-
tion key within 70 cm in radius from the periphery of
the vehicle, it requests the ETACS-ECU to
lock/unlock the doors (If the keyless operation key is
too high/low or too close to the vehicle, the door
entry function may not function).
NOTE: *: In the communication for certification of the
keyless operation key, KOS-ECU judges if the key-
less 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 an 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
KEYLESS OPERATION SYSTEM (KOS)
SYSTEM OPERATION
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
both parties coincided.
LOCKING OPERATION OF DOOR ENTRY
FUNCTION
The keyless operation key certification communica-
tion is performed when the lock/unlock switch of front
door outside handle (driver's side, front passenger's
side) or the lock switch of tailgate lock release han-
dle is turned ON. When KOS-ECU can certify the
registered keyless operation key outside the vehicle
only, it requests ETACS-ECU to lock all the doors
(including tailgate).
NOTE: .
•
When a keyless operation key is located inside
the vehicle, KOS-ECU does not output a request
for locking all the doors.
•
When a keyless operation key with discharged
battery is inserted in the keyless operation key
slot, the keyless operation key is not certified to
be located inside the vehicle.
42B-9