Keyless entry/TPMS receiver
WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
The function of TPMS receiver is included in keyless entry receiver.
Keyless entry/TPMS receiver receives data from tire pressure sensor, converts it from an analog signal to digital signal and transmits it to keyless start control module.