Precautions for installation of anti-theft device[汽车维修知识]

Anti-theft device ascarThe last additional device, after the general user purchases it, needs to be connected to the car before it can be used normally. The performance and function of the anti-theft device are mainly determined by three factors: the quality of the anti-theft device, the installation method and the correct use. The installation method of the anti-theft device is as important as the quality of the anti-theft device. Improper installation will cause some functions of the anti-theft device to malfunction, and it is easy to malfunction during use. Wrong wiring during the installation process can also cause damage to the original car circuit. Experienced anti-theft device installation technicians not only have a comprehensive understanding of anti-theft device knowledge, but are also very familiar with and understand automobile circuits. They judge automobile circuits not by rote memorization, but by circuit theory knowledge. Therefore, choosing an experienced installation technician is a guarantee for the performance and quality of the anti-theft device. 1. Check the original car circuit before installing the anti-theft device: 1,Central lockCircuit: Use the original car key (or central control lockswitch) Open/close the left front door and observe whether all the doors are opened/closed at the same time. The purpose is to prevent malfunction of the circuit or mechanical structure of each door lock of the original car. 2. Door switches: Open each door separately, check all door detection switches, whether they are in normal contact, and observe whether the roof lights are normally on when the doors are opened. At present, most car top lights have a delayed turn-off function. When checking, you must wait for the top lights to go out before opening other doors in turn to check whether the door switch is damaged, leaking, or poor contact, so as to prevent false alarms after installing an anti-theft device. 3. Starting circuit: Turn the car key to the ON position, and observe the lighting conditions of the indicators in the instrument panel (such as airbags,ABS, Charging, engine failure lights, etc.) Then start the vehicle normally, and then observe whether the indicator lights are off for any abnormalities. Avoid disputes with the owner when the vehicle is abnormal after the anti-theft is installed. 4.Turn signalCircuit: Turn the key to the ON position, turn on the left and right turn signal switches respectively, and observe whether the frequency (speed) of the left and right flashing lights is the same. (Turning on the emergency double flashing light switch can also check the turn signal circuit) 2. Wiring precautions during installation: 1. Find a suitable location for installing the host (except the air-conditioning air outlet), and carefully observe the structure of the decorative panel. The structure of the decorative panel must be disassembled due to the butt wiring. Wear working gloves when possible to prevent staining the interior decoration of the car. 2. The central control lock circuit is partially connected, and the trigger mode is quite different due to different models.Such as GM, Toyota, Mitsubishi and other series models, the central locking control part mainly adopts negative trigger mode, ShanghaipublicThe car uses a dual-potential negative trigger, and FAW-Volkswagen uses a single-wire trigger method. However, in the wiring connection with the central control lock of the anti-theft device, first confirm the trigger mode of the central control of the original car, and it is best to use the signal docking with the original vehicle; use the positive circuit connection method as little as possible. 3. When connecting the door switch detection line, be sure to connect the top light control bus (four-door bus). Don't connect it to the left front door and the door switch line, because the main door switch line and other door switch lines are separated by diodes. Connected, to avoid the phenomenon of not alarming when the door is opened when the security is set after the anti-theft is installed. 4. In the connection of the breaker, you must first confirm the ignition wire, fuel pump control wire, and start wire before choosing which one to disconnect (there is no anti-rob function when the start wire is disconnected); the anti-theft host input ON line should be connected to the broken Open the upper end of the circuit. It can also be connected to the line with positive 12V electricity when the car key is in the ON position. 5. It is best to connect the negative wire of the power supply to the ground of the original vehicle. The positive wire of the power supply should be connected last when the other wiring is well connected. All wiring must be firmly wrapped with insulating tape. The antenna position of the main unit has a great relationship with the remote control distance. It must be installed strictly according to the requirements of the manual, otherwise it will affect the remote control and receiving distance.Keep the alarm horn away from the engine when installingexhaust pipeHigh temperature to avoid high temperature damage. 3. Functional test after installation: 1. After all the wiring and connection of the main body of the anti-theft device are completed, debug and then install the decorative board. Check whether the wiring plugs are tightly contacted with the socket of the host, and whether there is any looseness.Turn the car key to the ON position and pressbrakeWhen the vehicle key is turned off, the central control lock should be automatically locked. When the car key is turned off, the central control lock will open. Then when each door is opened in turn, the turn signal should flash double (some models of anti-theft device key is turned on when the door turn signal is in the ON position). Will double flash) 2. After closing all doors and setting the anti-theft with the remote control for 10 seconds, the anti-theft device of the vibrating vehicle should immediately sound an alarm. The sensitivity of the vibration sensor can be adjusted according to the size of the installed vehicle. When installing the sensor, it should be pasted on the metal structure of the car body, otherwise it will affect the performance of the vibration sensor. 3. After all the functional tests are completed, the user should explain the simple common function operation methods to the car owner, including the approximate distance between the remote control and the receiving, the battery life of the remote control, the use of the emergency release switch function, and finally tell the user to install the telephone and the manufacturer's service Phone in order to provide better service to users. Pacific Automotive Network Related: ·Introduction to the functions of BOWON reversing imaging products
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