The control module detected that the signal in the Alternative Fuel Tank A Level circuit stayed below the expected operating range.
TuningBot DTC Database · v4.37.14
P01B1 Alternative Fuel Tank A Level Sensor Circuit Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P01B1 means
Related and nearby codes
How to read P01B1
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 P01B1
What does P01B1 mean?
Alternative Fuel Tank A Level Sensor Circuit Low. The control module detected that the signal in the Alternative Fuel Tank A Level circuit stayed below the expected operating range.
Is P01B1 generic or manufacturer-specific?
P01B1 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P01B1 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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
