P0571 CHEVROLET - Cruise Control/Brake Switch 'A' Circuit Malfunction
Faulty Brake Switch
Misadjusted brake switch
Brake Switch harness is open or shorted
Brake Switch circuit poor electrical connection
When is the code detected?
The P0571 codes is set when the stop light switch does not turn off even once the vehicle is driven.
Engine Light ON (or Service Engine Soon Warning Light)
Stop light inoperative
Cruise control system inoperative
P0571 Chevrolet Description
When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module (ECM
). When the ECM
receives this signal, it cancels the cruise control.