Circuit/System Description
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
The folding top control module provides a reference voltage to the rear compartment lid position sensor. rear compartment lid position sensor is connected to ground. The folding top control module provides monitors two signal circuits from the variable potentiometers in the rear compartment lid position sensor.