In addition to selling smart keys and chips, Weki also sells transponder keys for various models. A transponder key (chip key) is a key equipped with an RFID (Radio Frequency Identification) chip inside its plastic head. This technology prevents car theft by disabling hot wiring. In addition to using smart keys, some car models require transponder keys. As the global demand for cars continues to increase, this corresponds to the rising demand for car keys in various markets around the world. As a supplier of car keys, Weki has sufficient supply to meet customer needs, so if you need car keys, welcome to Weki to purchase.

What is a transponder key

A transponder key, also known as a transponder chip key or simply a transponder, is a type of car key that contains a small electronic device called a transponder chip. The word "transponder" is a combination of "transmitter" and "responder," which describes the key's function in communication with the vehicle's immobilizer system.

Now here's how a transponder key works:

1. Transponder Chip: The transponder key has a built-in transponder chip, which is a small electronic device typically housed within the key head or key fob. The chip is programmed with a unique identification code.

2. Immobilizer System: The vehicle's immobilizer system is an electronic security system designed to prevent unauthorized starting of the car. It consists of a transceiver unit located near the ignition switch or in the vicinity of the steering column.

3. Communication: When you insert the transponder key into the ignition and turn it, the key's transponder chip communicates with the immobilizer system. The transceiver unit sends a signal to the transponder chip, requesting it to transmit its unique identification code.

4. Code Verification: The transponder chip responds to the signal by transmitting its unique code back to the transceiver unit. The immobilizer system then checks if the received code matches the authorized code stored within its memory.

5. Engine Starting: If the transmitted code matches the authorized code, the immobilizer system allows the engine to start. If the codes do not match or are absent, the system will prevent the engine from starting or will disable the engine shortly after it starts.

The purpose of a transponder key is to provide an additional layer of security to prevent theft or unauthorized use of the vehicle. Since the transponder chip contains a unique code that must match with the immobilizer system's authorized code, it makes it difficult for someone to start the car without a properly programmed transponder key. If you need to replace or reprogram a transponder key, it's recommended to consult a professional automotive locksmith in your location.