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Description of Keyless Start System Parts and Functions

KEYLESS START SYSTEM PARTS AND FUNCTIONS

Parts Function
Keyless start control module
  • Activates each antenna
  • Verifies ID code of remote controller
  • Requests steering lock unit to release steering lock
  • Requests BCM to lock or unlock doors
  • Requests BCM to open trunk lid (Sedan)
  • Controls key indicator light in combination meter
  • Transmits its ID code to ECM
Remote controller
  • Receives request signal from each antenna
  • Transmits ID code and request signal to keyless start control module
  • Request keyless start control module to lock or unlock doors (keyless entry system function)
Request switch
  • Requests keyless start control module to activate each antenna
Center antenna
  • Transmits request signal to remote controller
Luggage room/trunk room antenna
  • Transmits request signal to remote controller
Driver side door antenna
  • Transmits request signal to remote controller
Passenger side door antenna
  • Transmits request signal to remote controller
Rear end door/trunk lid antenna
  • Transmits request signal to remote controller
Steering lock unit
  • Releases steering lock
Unlock button
  • Transmits door unlock request signal (keyless entry system function)
Lock button
  • Transmits door lock request signal (keyless entry system function)
BCM
  • Controls each door lock actuator
  • Controls trunk lid opener actuator (Sedan)
  • Controls warning buzzer
  • Lights hazard warning light and interior (DOME) light (answer back)
Key indicator light
  • Indicates operation state of keyless start system (indicates check result of remote controller ID code)
ECM
  • Checks keyless start control module ID code
  • Transmits its ID code to keyless start control module
  • Starts engine