The control module detected that the signal in the Fuel Fill Door Open Request Sensor/Switch circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P04CB Fuel Fill Door Open Request Sensor/Switch Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P04CB means
Related and nearby codes
How to read P04CB
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P04CB
What does P04CB mean?
Fuel Fill Door Open Request Sensor/Switch Circuit High. The control module detected that the signal in the Fuel Fill Door Open Request Sensor/Switch circuit stayed above the expected operating range.
Is P04CB generic or manufacturer-specific?
P04CB is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P04CB 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
Understand the system behind this code: Diagnostic Strategy and DTC Logic
