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DTC codes / P2Axx · Hybrid propulsion / P2A5E
P2A5E indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the outlet temperature sensor of the alternative fuel vaporizer, identified as vaporizer C. The PCM expects a steady voltage or resistance value that changes predictably with temperature, but the signal is dropping out or jumping erratically, which prevents reliable control of the vaporizer system.
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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