Passive Entry Antenna - Description

DESCRIPTION





Vehicles equipped with the optional Passive Entry (PE) or Keyless Go (KG) systems have several Low Frequency (LF), ferrite antenna units (1) located within the vehicle. Each ferrite PE antenna unit is contained within a molded black plastic housing with an integral connector receptacle 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 body or instrument panel wire harness.

Each antenna housing also includes two integral mounting flanges which can be used to mount the unit with screws. However, in some applications the antenna mounting flanges are snapped into a spring steel receiver or retainer (2), 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 four PE antenna units. One is mounted on the instrument panel base trim substrate below the radio, one on each lower rear corner of the inner door panels behind the inside trim panel and one at the forward edge of the spare tire well within the trunk compartment.

The antennas are each connected to the Passive Entry Module (PEM) on dedicated and sequentially numbered circuits. The left door antenna is connected through the antenna 1 circuits, the right door antenna is connected through the antenna 2 circuits, the instrument panel antenna is connected through the antenna 3 circuits and the trunk antenna is connected through the antenna 4 circuits.






An 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 receiver or retainer is available for separate service replacement.