What does code P01A0 mean?

Q: What does code P01A0 mean?

Alternative Fuel Tank A Pressure Sensor Circuit Low. P01A0 indicates that the powertrain control module (PCM) has detected a low voltage signal from the pressure sensor circuit of the alternative fuel tank designated as Tank A. The PCM expects the sensor to report a voltage within a calibrated range that corresponds to the tank's pressure, and a sustained low reading tells the module that the circuit is shorted to ground, the sensor has failed, or the reference voltage is missing.

DTC codes / P01xx · Fuel and air metering / P01A0

P01A0Alternative Fuel Tank A Pressure Sensor Circuit Low

P01A0 indicates that the powertrain control module (PCM) has detected a low voltage signal from the pressure sensor circuit of the alternative fuel tank designated as Tank A. The PCM expects the sensor to report a voltage within a calibrated range that corresponds to the tank's pressure, and a sustained low reading tells the module that the circuit is shorted to ground, the sensor has failed, or the reference voltage is missing.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.