What does OBD2 code P0571 mean?+
P0571 stands for Cruise Control/Brake Switch A Circuit. Fault in the brake switch circuit that deactivates cruise control. The brake signal is used to disengage cruise when brakes are applied.
What causes code P0571?+
Failed brake light switch; Misadjusted brake switch; Open circuit in brake switch wiring; Failed cruise control module
How do I fix code P0571?+
Inspect brake light switch adjustment and operation; Test brake switch with multimeter; Replace brake switch; Check wiring from switch to cruise control and ECU
How much does it cost to fix P0571?+
Estimated repair cost for P0571 is $20–$150.
Is P0571 DIY-friendly?+
Yes — P0571 is generally DIY-friendly with basic tools.