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DTC codes / P2Axx · Hybrid propulsion / P2A6B
P2A6B indicates that the powertrain control module has detected a low voltage signal from the pressure sensor monitoring the alternative fuel rail pressure regulator circuit. The sensor's output is below the expected range for the current operating conditions, which can affect fuel pressure regulation and alternative fuel delivery.
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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