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 monitors the position of the stowage compartment left flap through the left folding top stowage compartment flap closed position sensor.
The sensor is a two-wire hall effect sensor providing an input to the folding top control module. One terminal is low reference and the other is a signal circuit.