How to install an electronic alarm on the car
????3) Door switch: open the door, check all the door detection switch is normal, observe the door were opened, the roof lights are bright. At present, most models of the dome light with a delay extinguished function, check the need to wait after the top lights go out, and then turn on the other doors, check the door switch is damaged, leakage, poor contact and so on, to prevent the installation of anti-theft alarm after the alarm.
????2) Turn the lamp circuit: turn the car key to "ON" position, respectively, open the left and right turn lights switch, observe the left and right flash frequency is the same.
????1) Start the circuit: turn the car key to the "ON" position, observe the instrument panel lights such as airbags, ABS, charging, engine failure lights and other bright, and then start the vehicle normally, and then observe the lights off The situation is abnormal.
1. Before installing the anti-theft device, you should first check the original car circuit system is faulty, such as starting circuit, turn signal circuit, door switch, central locking circuit, etc., in determining the circuit after the normal installation of the anti-theft device. Check the method is:
Car electronic anti-theft device is installed in the car inside the anti-theft device, and car-related circuit connection, you can lock the starter, oil or ignition system circuit, play a deterrent, anti-theft effect. Anti-theft device is usually by the anti-theft host, vibration sensors, flameout relay, alarm speakers and remote control and other components. Automotive electronic alarm is divided into one-way anti-theft device and two-way anti-theft device. Car electronic anti-theft device features are: body vibration alarm, illegal open the door alarm, illegal car alarm, robbery car alarm and other functions.
