Smart Key Supply Transmitter Sub-Assembly

The Smart Key Supply Transmitter Sub-Assembly (#8990H47090), a crucial part of the Body/Lock Cylinder Set in a Toyota vehicle, performs the primary role of remotely controlling the lock and unlock functions of the vehicle. It communicates with the car's smart key system, sending signals when the key is within range to unlock or lock the vehicle. Genuine Toyota parts like this are specifically designed to work best with the vehicle, ensuring compatibility and backed by Toyota's genuine parts warranty. Over time, like all electronic components, the Smart Key Supply Transmitter Sub-Assembly (#8990H47090) can wear down or become damaged. When this occurs, the remote lock and unlock functions may fail to operate correctly, leading to inconvenience and potential security issues. Therefore, a routine check and replacement when necessary are advised. The Smart Key Supply Transmitter Sub-Assembly (#8990H47090) contributes to the overall security and efficiency of the vehicle, providing a convenient and secure method for locking and unlocking the vehicle.