Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
B3664 02
The sunroof module has detected and reported via serial data that the sunroof position select switch high signal circuit is shorted to ground.
B3664 05
The sunroof module has detected and reported via the serial data that the sunroof position select switch high signal circuit is open or shorted to voltage.
B3664 59
The sunroof module has detected and reported via the serial data that the sunroof position select switch high signal has been the same active position for 20 seconds after the glass has stopped moving in the requested direction due to reaching the end of the allowable motion.