The control module detected that the signal in the Alternative Fuel Tank A Level circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P01B2 Alternative Fuel Tank A Level Sensor Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P01B2 means
Related and nearby codes
How to read P01B2
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 P01B2
What does P01B2 mean?
Alternative Fuel Tank A Level Sensor Circuit High. The control module detected that the signal in the Alternative Fuel Tank A Level circuit stayed above the expected operating range.
Is P01B2 generic or manufacturer-specific?
P01B2 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P01B2 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
