Passive Entry System

Operation:

• Touching either front door handle will cause the Radio Frequency Hub (RFH) to authenticate the validity and location(s) of a FOB via Passive Entry Keyless Go (PEKG) antenna(s).
• The FOBIK responds by sending a Ultra High Frequency (UHF) message back to the receiver within the RFH.
• If an authentic FOB (up to eight can be programmed) is found in the same exterior zone (left, right) as the asserted door handle, the RFH sends out an "Unlock Door" request via CAN-C if the following conditions are met:
  • vehicle not moving
  • vehicle in park

While the PEKG system allows the doors to be unlocked passively; they must still be locked actively after exiting the vehicle using the tactile Lock  button on either front door handle.

The PEKG system circuits and FOBIK inputs are continually monitored by the microcontroller and software contained within the RFH. When the RFH monitors a problem in any of the PEKG system circuits or FOBIK inputs, it stores a Diagnostic Trouble Code (DTC) in its memory circuit.