Keyless Entry Rear Antenna
WARNING: This page is about a different car, the 2015 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For information on the center PATS antenna, refer to PASSIVE ANTI-THEFT SYSTEM (PATS) - VEHICLES WITH: PUSH BUTTON START (HYBRID/ENERGI)
The keyless entry rear antenna is wired to the BCM. When activated, it transmits a low frequency signal to activate a passive key.