Generic SAE-standard code: same meaning on every make.
604
Specific fault index within the subsystem.
Frequently asked questions about U0604
What does U0604 mean?
Lost Communication With Fuel Pressure Sensor B. The control module stopped receiving expected network messages from the Fuel Pressure Sensor B node on the vehicle communication bus.
Is U0604 generic or manufacturer-specific?
U0604 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U0604 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 U0604 is removable in your case.
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