Keyless Entry Module: Description and Operation

The central security module contains a radio receiver that receives a signal from the keyless entry remote transmitter through the central security module antenna. Once a signal is received, the central security module sends the appropriate command to the door lock actuators, the horn relay, the liftgate release actuator, central timer module, and the exterior lights.

The central security module is equipped with battery back-up which holds the programmed transmitter(s) memory in the event of vehicle battery disconnection.