P0559: Brake Booster Pressure Sensor Circuit Intermittent

What does P0559 mean?

P0559 is a diagnostic trouble code indicating "Brake Booster Pressure Sensor Circuit Intermittent". A sensor in the turbo/supercharger is reporting abnormal data or has lost communication with the ECU. Sensors can fail due to age, contamination, heat exposure, or wiring issues.

Common causes

• Faulty turbo/supercharger component
• Wiring or connector issue in the related circuit
• Failed sensor providing incorrect readings
• Software/calibration issue requiring ECU update
• Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

Get a diagnosis for YOUR car

Code P0559 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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