Conditions for Setting the DTCs
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 does not detect position sensor movement or pulse signals while the adjuster motor is active. The following conditions will set these DTCs:
B174B 08, B174C 02, or B175C 08
The folding top control module detects a short to ground on the 12 V reference circuit.
B174B 08, B174C 05, or B175C 08
The folding top control module detects a short to battery or an open on the 12 V reference circuit.
B174B 08 or B175C 08
The folding top control module detects a short to ground, a short to battery, or an open on the sensor signal circuit.