Conditions for Setting the DTC
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.
DTC B3950 02
The folding top control module detects a short to ground in the left rear auxiliary turn signal control circuit.
DTC B3950 04
The folding top control module detects an open/high resistance in the left rear auxiliary turn signal control circuit.
DTC B3951 02
The folding top control module detects a short to ground in the right rear auxiliary turn signal control circuit.
DTC B3951 04
The folding top control module detects an open/high resistance in the right rear auxiliary turn signal control circuit.