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DTC codes / P2Axx · Hybrid propulsion / P2A5B
P2A5B indicates that the powertrain control module has detected an out-of-range or erratic signal from the outlet temperature sensor of the alternative fuel vaporizer designated as 'C'. The computer compares this sensor's reading against expected values during normal operation and flags a fault when the signal does not behave as the calibration predicts.
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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