The control module detected that the current in the Brake Booster Motor A Phase U - V - W circuit was below the expected range.
TuningBot DTC Database · v4.37.14
C0591 Brake Booster Motor A Phase U - V - W Current Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What C0591 means
Related and nearby codes
How to read C0591
Chassis: brakes, steering and suspension.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about C0591
What does C0591 mean?
Brake Booster Motor A Phase U - V - W Current Low. The control module detected that the current in the Brake Booster Motor A Phase U - V - W circuit was below the expected range.
Is C0591 generic or manufacturer-specific?
C0591 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove C0591 at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether C0591 is removable in your case.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
