User's Manual

R&D / Automotive Electronics
Title Remote Keyless Entry System Specification Spec. No. DPE-AE-RK019912S
Written by Ban Dong Hoon
Rev. No.
A0
Date 10
th
. Nov. 2003 Page
8 / 25
3.1.2 TRANSMITTER DOOR / TRUNK
This system function by using two buttons of the valid Tx is shown at Table 2. Now we define
the “VALID Tx” as the ID code (Fixed code + Crypto code) of the Tx is memorized by the
Control Unit.
Status Button Function
A set / unset "DOOR" all door lock or unlock
according to lock_monitoring status
B set / unset "TRUNK" operating trunk solenoid and
chirp operating(0.05sec on / 0.45sec off)
[Table 2. System Function by Using Two Buttons of the Valid Tx]
When the ignition is off, the key reminder is off, all doors (door / hood / trunk) are closed and the
lock_monitoring signal is GND, door lock by the Tx door button. The Rx status goes to the
arming mode in the condition of the arming mode. For the information of the remote door lock,
the hazard lamp blinks once for 0.5sec and the siren operates once 0.05sec.
When remote door lock is operated and not in the condition of the arming mode, hazard lamp
does not blink and Siren does not operation because of not changing Rx status.
When the ignition is off, the key reminder is off and the lock_monitoring signal is open, the Rx
drives the door actuator in order to unlock all doors by the Tx door button. The Rx status goes to
the disarming mode. For the information of the remote door unlock, the hazard lamp blinks twice,
the period is 1sec and the duty ratio is 0.5sec. But if there was the burglar alarm, the hazard lamp
blinking period is 2s (0.5sec On and 1.5sec Off).
When the trunk function by the Tx trunk button operates, trunk solenoid is actuated for 500ms.
For the information of the remote trunk open, the siren operates twice, the period is 0.5sec
(0.05sec on 0.45sec off). But it does not change the Rx status.