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OBD-II Code

P0571 — Cruise Control/Brake Switch A Circuit Malfunction

A malfunction is detected in brake switch A circuit, affecting cruise control disengagement logic.

System Engine
Severity High
Safe to drive? Yes, with caution
Advanced scanner Not necessarily

What does code P0571 mean?

A malfunction is detected in brake switch A circuit, affecting cruise control disengagement logic.

Common symptoms

  • Brake lights malfunction
  • cruise control disengages incorrectly

Possible causes

  • Faulty brake switch
  • loose wiring harness

Initial recommendation

Replace brake switch and inspect connector and wiring condition.

Safety notice

This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine code P0571 with your vehicle's actual symptoms for more complete diagnostic guidance.

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