How to connect the alarm to the lock?
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The process of connecting the alarm to the central lock of the car is quite complicated. It requires maximum attention from the motorist and assumes the presence of minimal knowledge in electrical engineering. If you decide to install a car alarm and as much as possible to protect your vehicle, then you can not do without central locking.
How to connect the alarm to the car lock?
To begin with, it will be determined what type of connection to the central locking system (central lock) of the car is used in the alarm system you have purchased. To do this, find the instructions and see how the wires to the lock are marked. They can be used to reverse polarity, to give a positive or negative impulse. In addition, the types of CG used may be different. The most ideal option would be full compliance of the alarm pulses and auto equipment, this will allow you to set up the alarm as easily as possible.
Signaling connection to a negative impulse controlled lock:
- Find the control relay central lock (it can be located in the driver's door or under the dashboard);
- With the help of the probe, we apply minus to one of its inputs; if the lock works, you found it;
- We solder wires from the alarm to the relay (if it has a minus at the output, otherwise an additional relay or transistors are needed to change the wiring diagram).
- After that, the attacker will have to sweat badly to turn off the alarm.
Alarm connection to a positive impulse lock:
- We are looking for a central locking relay, as in the previous version, and when we found it, we feed “+” to the input, not “-”;
- If the lock is opened - you have found the right relay;
- Now we solder the alarm to its contacts (if it has a positive output on the central locking system, otherwise we collect the circuit from transistors).
To connect to a system that uses reverse polarity, the alarm should be equipped with an additional unit for working with power wiring.