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DTC codes / P2Axx · Hybrid propulsion / P2A2B
P2A2B indicates that the powertrain control module has detected a performance fault or stuck-off condition in the control circuit for the alternative fuel tank shutoff valve D. The computer monitors the circuit for expected electrical behavior and flags the code when the valve fails to respond or the circuit does not meet performance criteria.
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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