Generic SAE-standard code: same meaning on every make.
564
Specific fault index within the subsystem.
Frequently asked questions about U3564
What does U3564 mean?
Hydrogen Supply Line A Pressure Sensor 1 Circuit. The control module detected improper operation of the Hydrogen Supply Line A Pressure Sensor 1 circuit.
Is U3564 generic or manufacturer-specific?
U3564 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U3564 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 U3564 is removable in your case.