The control module detected a fault associated with the Fuel Level Sensor A/B Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.
TuningBot DTC Database · v4.37.15
P2C51 Fuel Level Sensor A/B Correlation
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2C51 means
Related and nearby codes
How to read P2C51
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 P2C51
What does P2C51 mean?
Fuel Level Sensor A/B Correlation. The control module detected a fault associated with the Fuel Level Sensor A/B Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P2C51 generic or manufacturer-specific?
P2C51 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2C51 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
