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DTC codes / P2Cxx · Hybrid propulsion / P2C29
P2C29 indicates that the powertrain control module has detected a fault with the 'B' bypass valve circuit for a turbocharger or supercharger, where the valve is reported as stuck. The computer monitors the valve's electrical circuit and/or position feedback and sets this code when the commanded state does not match the actual state, or when the circuit indicates a stuck condition.
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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