Passive Open Tailgate

Pressing the Trunk Lid Switch when the trunk is closed indicates the operators intent to open the trunk and thus triggers the system. Subsequently, the SMK ECU sends a LF-challenge to the SMART KEY FOB via the exterior bumper antenna. The SMART KEY FOB answers with a RF-Response. If the received response matches the expected answer, SMK ECU sends a "Trunk Open" message via the CAN Network.