I finally located this annoying device. It's behind the rear bumper and towards the driver side. There are two buzzer units (they look like relays) in this area. The one for the tailgate is the one that is activated by a proximity sensor that is located at the center of the bumper. You can follow the harness from it to the buzzer.
I unplugged the connector at the buzzer, determined that I had the right one and then plugged it back in half way. This interrupts the connection but keeps the dirt out.
Five minute modification without having to jack up the car.
I unplugged the connector at the buzzer, determined that I had the right one and then plugged it back in half way. This interrupts the connection but keeps the dirt out.
Five minute modification without having to jack up the car.