Vehicle Security Module
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle security module is on the universal asynchronous receiver transmitter (UART) based protocol (UBP) communication network. The vehicle security module controls the keyless entry functions for the vehicle. For additional information, refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS