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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Sunroof) >> Diagnostic Information and Procedures >> DTC B15FD >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

B15FD 11 

The sunroof motor has detected and reported via serial data that the sunroof switch signal is shorted to ground.

B15FD 15 

The sunroof motor has detected and reported via serial data that the sunroof switch signal is open or shorted to voltage.

B15FD 23 

The sunroof motor has detected and reported via serial data that the sunroof switch has been in the same active position for 20 s after the glass has stopped moving in the requested direction due to reaching the end of the allowable motion.

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