The control module detected improper operation of the Alternative Fuel Disable circuit.
TuningBot DTC Database · v4.37.15
P25C1 Alternative Fuel Disable Signal Circuit
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P25C1 means
Related and nearby codes
How to read P25C1
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 P25C1
What does P25C1 mean?
Alternative Fuel Disable Signal Circuit. The control module detected improper operation of the Alternative Fuel Disable circuit.
Is P25C1 generic or manufacturer-specific?
P25C1 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P25C1 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
