Passive Entry Antenna - Description

DESCRIPTION





Vehicles equipped with the Passive Entry (PE) and Keyless Go (KG) systems have several Low Frequency (LF), ferrite antenna units (2) located within the vehicle. Each ferrite PE antenna unit is contained within a molded black plastic housing with an integral connector receptacle (3) molded into one end. The connector receptacle contains terminal pins that connect the antenna to the vehicle electrical system through a twisted pair of conductors and a connector that are part of the adjacent wire harness.

Each antenna housing also includes two integral mounting flange or flanges (1) which can be used to mount the unit with screws. However, in some applications the antenna mounting flanges are snapped into a spring steel adapter or retainer, which allows the antenna unit to be securely clipped in place over a body flange rather than being secured with screws. This vehicle platform uses five PE antenna units. One is secured to the underside of the center floor console, one is secured to each rear door hardware module carrier concealed behind the inside door trim panels, one is secured to the forward flange of the spare tire well within the trunk area and one is concealed behind the rear fascia to the right of the license plate lamp.

The antennas are each connected to the Radio Frequency Hub (also known as the RF Hub) on dedicated and sequentially numbered circuits. The left rear door antenna is connected through the antenna 1 circuits, the right rear door antenna is connected through the antenna 2 circuits, the trunk antenna is connected through the antenna 3 circuits, the center floor console is connected through the antenna 4 circuits and the rear fascia bracket antenna is connected through the antenna 5 circuits.






An LF antenna unit cannot be adjusted or repaired. If ineffective or damaged, it must be replaced with a new unit. For applications where it is used, the antenna unit adapter or retainer may be serviced only as a unit with the LF antenna.