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.
C116B 05, 55, 56, 59, 5A
Signal circuit = Voltage Out of Range
Ground circuit = Open
Rear Disc Brake Pad Wear Sensor = Worn
C116B 71
The control module receives no or invalid data from a sensor.