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DTC Descriptors

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
DTC B369C 02

Sunroof Ventilation Position Select Switch Circuit Short to Ground

DTC B369C 05

Sunroof Ventilation Position Select Switch Circuit High Voltage/Open

DTC B369C 59

Sunroof Ventilation Position Select Switch Circuit Protection Time-Out