2+1Buttons 89904-48100 Board 0140 315MHz Smart Key for Toyota RAV4

Tips

1. This is a complete smart key with 271451-0140 PCB for Toyota RAV4 / Toyota Highlander.

2. Before use, you need to program the key at your local car locksmith.

3. Please carefully check the smart key P/N, picture, board id and other information to avoid buying the wrong one.

4. Car key anti-theft principle: the car's electronic anti-theft system communicates with the engine control computer and allows the engine to be started only after the code in the key chip is recognized.

5. Types of car key chips: fixed code, rolling code and encrypted code.

• Fixed code: The code is fixed and consists of numbers and English letters (the data will not change when the engine is started).

• Rolling Code: Each car key has a different electronic code, but the code is changed each time the key is used to start the vehicle's engine. The procedure for changing the code is known only to the manufacturer of the chip controller and is difficult to crack by reading the memory of the key chip.

• Encryption code: Encryption code is used on the latest chips and chip controllers (using two-way data encryption). It is equipped with internal programming algorithms for decrypting each encrypted message.