Elantra L4-2.0L (2004)
Alarm Module: Description and Operation
Anti-Theft Function
ANTI-THEFT FUNCTION
1. ARM FUNCTION
Pressing the remote key lock button will result in a 0.5-second pulse issued to lock all doors.
Pressing the remote keypad unlock button once will result in a 0.5-second unlock pulse issued to unlock all doors.
As part of the arming sequence, the alarm first enters a pre-armed state before falling into the armed state. During this pre-armed state, the alarm
triggers are ignored. Pre-armed state can be reached from the alarmed state, the start inhibit state or the disarmed state. Pre-Arming of the alarm
can be achieved by a press of the lock button on the remote key.
In the pre-armed state the visible and audible warnings are disabled.
This system enters the armed state if it is in the prearmed state and, after 0.6 sec, check actuator lock and each door, hood and trunk close, and no
door warning switch (no key in ignition).
On entering the arm state, a single flash of the hazard lamps is given, period of cycle 2 second, duty rate 50%.
If transmitter(TX) lock signal is received when a door, trunk or hood is open, then lock output is given but a flash of hazard is not given.
After the armed state is entered, if a lock signal is received then a single flash of the hazard lamps is given, period of cycle 2 second, duty rate
50%.
The armed state cannot be reached by locking the car with the keys.
2. DISARM FUNCTION
Disarming can be performed while the alarm is armed, or alarming, or after alarming. The alarm can be disarmed by the following methods:
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Pressing the unlock button on the transmitter(TX) key. The hazard lamps shall be flashed twice for 1 sec period (of cycle), 50% duty rate.
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If door warning switch is on, IGN1 and IGN2 are on in arm state, then arm state should be immediately cancelled. This means that the driver is
inside the vehicle before pushing TX lock, so system should not arm.
