DTC codes / P2Axx · Hybrid propulsion / P2A50
P2A50 indicates that the powertrain control module (PCM) has detected an abnormal signal from the outlet temperature sensor of the alternative fuel vaporizer, which is part of a gaseous fuel system such as compressed natural gas or liquefied petroleum gas. The PCM compares this sensor's voltage against expected values and sets the code when the reading falls outside the calibrated range or behaves erratically.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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