Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
P057B
ECM detects the brake pedal position sensor signal is stuck in a range for less than 1 s.
P057C
ECM detects the brake pedal position sensor voltage is less than 0.25 V for less than 1 s.
P057D
ECM detects the brake pedal position sensor voltage is greater than 4.75 V for less than 1 s.