Keyless Entry Door Antennas
WARNING: This page is about a different car, the 2007 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
The keyless entry door antennas are used to transmit and receive radio frequency (RF) communications with the keyless entry transmitters.
The keyless entry door antennas are molded into the vehicles front left and front right exterior door handles. The antennas are serviced as part of the door handle assembly. The antennas are controlled by the remote control door lock receiver (RCDLR). When the exterior door handle is operated, the respective antennas sends out sends out a challenge to the keyless entry transmitter which begins the passive entry communications.