What are the types of car electronic anti-theft locks?

[MartinDella]

Car electronic anti-theft locks can be divided into three categories: mechanical anti-theft locks, electronic anti-theft alarm locks, and networked anti-theft (positioning, tracking) systems. Car anti-theft locks include: electronic car anti-theft locks, network car anti-theft locks, fuel circuit locks, clutch brake anti-theft locks, wheel anti-theft locks, gear locks, steering wheel locks, car anti-theft magnetic sheets, etc. The anti-theft logic of car engines: when the ignition switch is turned on, the key transponder and the anti-theft controller form the first information exchange. If the identification codes between the key and the chip are different, the anti-theft controller will not continue to communicate with the ECU, and the ignition system and fuel injection system circuits remain open, preventing the engine from starting.

[Jennifer]

I've previously researched car anti-theft devices, and there are several common types of electronic anti-theft locks nowadays. The chip key is a basic one, where the key contains an encrypted chip inside, and the vehicle can only be started if it matches the car's ECU. A more advanced option is the password lock system, which requires entering a preset password to start the ignition, somewhat like unlocking a phone with a pattern. Currently popular are GPS tracking anti-theft devices that alert you whenever there's unusual movement of the car, allowing you to check the vehicle's location anytime. Network-based anti-theft is even more advanced, using a SIM card to connect to the internet and send alerts about abnormal vibrations or movements to the owner's phone. The most advanced is biometric recognition technology, which uses fingerprint or facial scanning to verify identity and start the vehicle. Choosing an anti-theft lock should be based on practical needs. A chip key is sufficient for regular commuting, but if you travel frequently, adding a GPS anti-theft device might offer more peace of mind.

[LeValentina]

When repairing cars, I often encounter customers asking about electronic anti-theft types, which are actually quite detailed. The most traditional remote lock is familiar to everyone—just press a button to lock or unlock the doors. More high-end is the keyless start system, where the car unlocks when you pull the door handle with the key in your pocket. There’s also the steering wheel lock specifically designed to prevent lock-picking, which automatically locks the steering column when powered. Nowadays, the mainstream OBD interface lock for electric vehicles is quite practical—it encrypts the diagnostic port, making it impossible even for computers to read the data. The fuel circuit lock often installed by veteran car enthusiasts is also good, as it disconnects the fuel pump circuit via a hidden switch. However, it’s advisable not to rely solely on electronic anti-theft; combining it with physical locks is the most reliable. A steering wheel lock paired with GPS anti-theft can basically deter professional car thieves.

[SanCollin]

Electronic anti-theft locks can be categorized into three types based on their working principles. The basic type is the common remote key, which can lock and unlock doors within a range of fifty meters. The verification-type anti-theft system requires interactive authentication, such as entering a touchscreen password during startup or using biometric systems found in luxury vehicles. The most advanced is the tracking-type anti-theft system, such as GSM-based anti-theft with mobile base stations that automatically send the vehicle's location to a phone when moved; GPS-based anti-theft can also set up electronic fences. When choosing an anti-theft device, ensure compatibility with the vehicle model—Japanese cars often use electric door locks, while European cars prefer installing relays to cut off the lock. For a limited budget, opt for a remote lock priced around two hundred yuan; for high-end options, consider a combined anti-theft system with APP monitoring.