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TuningBot DTC Database · v4.37.15

P0559 Brake Booster Pressure Sensor Circuit Intermittent

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P0559 means

P0559
Brake Booster Pressure Sensor Circuit Intermittent Generic · engine Data confidence 90%

The control module detected an unstable or intermittent signal in the Brake Booster Pressure circuit.

Symptoms

  • Possible reduced power or limp mode
  • MIL illuminated
  • Possible abnormal turbocharger noise

Possible causes

  • Wiring
  • poor connection
  • brake servo pressure sensor
  • ECM

Recommended checks

  • Compare specified vs actual boost with live data
  • Check actuator movement over the full range
  • Check hoses and vacuum lines
  • Inspect wiring and connectors

Related and nearby codes

How to read P0559

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

559

Specific fault index within the subsystem.

Frequently asked questions about P0559

What does P0559 mean?

Brake Booster Pressure Sensor Circuit Intermittent. The control module detected an unstable or intermittent signal in the Brake Booster Pressure circuit.

Is P0559 generic or manufacturer-specific?

P0559 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0559 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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