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Control Of Unlocking Operation: Notes

Fig 1: Unlocking Control Operation Diagram
G09670768Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  1. KOS-ECU detects the lock/unlock switch ON signal of door outside handle (driver's side, front passenger's side) or the liftgate lock release handle (open switch) ON signal.
    NOTE: When KOS-ECU detects the lock/unlock switch ON signal of door outside handle (driver's side, front passenger's side) or the liftgate lock release handle (open switch) ON signal, KOS-ECU judges the unlock prohibition condition. When the unlock prohibition condition is met, the unlocking operation is terminated.
  2. When KOS-ECU detects the lock/unlock switch ON signal of door outside handle (driver's side, front passenger's side) or the liftgate lock release handle (open switch) ON signal, KOS-ECU transmits the exterior data from the outside transmission antenna assembly on the operation side. At the same time, KOS-ECU transmits the interfering radio wave* (reversal code) from the outside transmission antenna assembly on the other side. (The interfering radio wave will be transmitted from the front passenger-side antenna assembly when the driver-side door outside handle is operated, and vice versa. It will not be transmitted when the liftgate lock release handle is operated.)
    NOTE: *: The interfering radio wave is transmitted to disable the door locking/unlocking operation performed by a person without the keyless operation key while a user with the keyless operation key is operating from the opposite side of the vehicle.
  3. After the exterior data are transmitted from the outside transmission antenna assembly, the interior data are transmitted from the inside transmission antenna assembly (front, rear).
  4. For the specified time (varies with the number of keyless operation keys registered in KOS-ECU), the response from the keyless operation key meeting the unlock condition is monitored.
    • When the registered keyless operation key receives the exterior data only, KOS-ECU transmits the unlock request (request to unlock the applicable position) to ETACS-ECU.
    • Even after the specified time has elapsed, if KOS-ECU receives no response that satisfies the unlock, it performs a retry once. (When no response after the retry, KOS-ECU terminates the unlocking operation.)
    • When the unlocking operation is performed on the driver's side, the priority order of keyless operation key is updated.