[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Technical Information Manual
42 -BODY > 42B-KEYLESS OPERATION SYSTEM (KOS) > GENERAL INFORMATION
GENERAL INFORMATION
 
 
The keyless operation system (KOS) has the following features:
  • This system enables the driver to unlock all the doors (including the tailgate) by operating the lock/unlock switch on the front door outside handles or operating the tailgate lock release handle (tailgate open switch, tailgate lock switch), without taking the keyless operation key out of his/her pocket or bag when he/she is carrying a keyless operation key which has been registered in the KOS&OSS-ECU. This function is called "Door entry function".
  • This system enables the driver to carry out remote operation (locking/unlocking of all doors and tailgate) and multi-mode operation (folding/unfolding of door mirrors) by operating the lock/unlock switch in the keyless operation key. This function is called "Keyless entry function".
  • This one-touch start system (OSS) enables the driver to start the engine by operating the engine switch instead of a conventional mechanical key.
  • This system features an immobilizer function which prohibits the engine start by using an unauthorised key.
  • Each vehicle is provided with two keyless operation keys, and up to four keyless operation keys can be registered in the ECU.
  • The keyless operation key also incorporates an indicator lamp that enables the driver to check if the signal is transmitted correctly or if the battery in the key is discharged (Refer to ).
  • The keyless operation key incorporates an emergency key to lock/unlock the doors in case the battery in the keyless operation key is discharged or the keyless operation system is not working normally.
  • When the battery of the keyless operation key runs out or when the interior antenna fails, the engine can be started and the power mode can be switched by touching the engine switch with the keyless operation key with the flat battery. (Refer to ).
    noteIf the immobilizer related system failure occurs, the engine may not start.
  • The system shuts down the ACC power supply when 30 or 60 minutes has elapsed with the power supply mode in the "ACC" position. This prevents the battery from being discharged.
  • By customisation, KOS related settings can be changed (Refer to ).
 
 
 
 
CONSTRUCTION DIAGRAM
 
 
 
 
Main components and functions
Parts nameFunctional description
KOS&OSS-ECUControls the KOS and the OSS by using the following inputs/outputs and communications.
  • Input of front door lock/unlock switch, input of tailgate lock release handle, and input of tailgate lock switch.
  • Communications with ETACS-ECU and combination meter via CAN
  • Wireless communication via the keyless operation key, keyless operation antenna, and engine switch built-in antenna
  • Output to the keyless operation buzzer
  • Output of actuator driving permission signal to electric steering lock
  • Controls the power supply according to the inputs sent by the engine switch, the stop lamp switch and the P detection switch <CVT>, and the clutch switch <M/T>.
  • Sends power supply permission signal to the electric steering lock unit.
  • Communicates with the electric steering lock via LIN to lock/unlock the electric steering lock and diagnose the system.
  • Switches the vehicle power supply relay.
  • Communicates with the engine-ECU via CAN to judge whether the engine can be started.
Electric steering lock (incorporates electric steering lock unit)The keyless operation system allows the steering wheel to be locked/unlocked electrically. Communicates with the KOS&OSS-ECU via LIN for user authentication and uses power supply permission signal and an actuator permission signal via wires to lock and unlock the steering wheel.
Keyless operation key (incorporates emergency key)The keyless operation key receives the signal transmitted from the keyless operation antenna, performs the authentication of the key ID code and the cryptographic operation, and transmits the response data as a signal to the KOS&OSS-ECU. If the built-in battery is flat, by holding the keyless operation key with the flat battery on the engine switch, then the signal transmitted from the engine switch is received, and authentication of the key ID code and the cryptographic operation are performed, and the response data is transmitted to the KOS&OSS-ECU via the engine switch as a signal. Also, when the lock/unlock switch of the keyless operation key is operated, then it is transmitted to the KOS&OSS-ECU as a signal.
Lock/Unlock switchDriver’s sideLocks/unlocks all the doors and tailgate when the driver carrying the keyless operation key presses the lock/unlock switch on the front door outside handle.
Passenger’s side
Tailgate lock switchLocks all the doors and tailgate when the driver carrying the keyless operation key presses the lock switch on the tailgate lock release handle.
Tailgate lock release handle (Open switch)Unlocks all the doors and the tailgate when a driver carrying the keyless operation key presses the tailgate lock release handle.
Keyless operation antenna (Front: Outer side)Driver’s sideConverts the data output from KOS&OSS-ECU via wire into a signal, and sends it to the keyless operation key (For more information on the transmission/reception area, refer to the door entry function valid area ).
Passenger’s side
Keyless operation antenna (Rear: Outer side)Tailgate
Keyless operation antenna (Front: Inner side)Converts the data output from KOS&OSS-ECU via wire into a signal, and sends it to the keyless operation key (For more information on the transmission/reception area, refer to the one-touch start system valid area ).
Keyless operation antenna (Rear: Inner side)
Keyless operation buzzerThe keyless operation buzzer sounds when:
  • The keyless operation key is carried out of the vehicle when the power supply mode is other than "OFF", and the door is closed.
  • The lock/unlock switch on the front door outside handle or the tailgate is pressed when the power supply mode is other than "OFF".
  • The lock/unlock switch on the front door outside handle or the tailgate is pressed when the keyless operation key is still located inside the car.
  • The lock/unlock switch on the front door outside handle or tailgate is pressed when the door is ajar.
Engine switch
  • Output of engine switch ON/OFF signal to KOS&OSS-ECU
  • Input of LED signal from KOS&OSS-ECU
  • Converts the data output from KOS&OSS-ECU via wire into a signal, sends it to the keyless operation key, and then sends the reply data signal from keyless operation key to KOS&OSS-ECU.
Combination meter (keyless operation warning display)Communicates with KOS&OSS-ECU via CAN. Receives the warning request or warning information from KOS&OSS-ECU, and displays the warning.
ETACS-ECU
  • Communicates with KOS&OSS-ECU via CAN. By the door lock/unlock request or tailgate lock/unlock request from KOS&OSS-ECU, ETACS-ECU outputs the lock/unlock signal. When the door lock/unlock signal is output, the ETACS-ECU flashes or illuminates the turn-signal lamps and the room lamp to notify the driver that the doors are locked/unlocked. Furthermore, by the multi-mode function of keyless entry, the folding/unfolding of door mirrors is performed depending on the pattern of door lock/unlock request from KOS-ECU.
  • Communicates with KOS&OSS-ECU via CAN, and outputs the door switch ON/OFF signal.
  • Receives the ACC output signal or IG1 output signal sent from KOS&OSS-ECU via wire communication, and drives the ACC relay or supplies electrical current to the IG1 relay to drive the IG1 relay.
Engine-ECUCommunicates with KOS&OSS-ECU via CAN. Permits/inhibits the engine starting and controls the engine operation.
 
 
System configuration