DTC codes / P2Dxx · Hybrid propulsion / P2D14
P2D14 indicates that the powertrain control module has detected a low-voltage condition on the control circuit for the exhaust flow control valve, which is used to manage exhaust backpressure and flow. The computer expects a certain voltage on the control wire when commanding the valve, but the signal is lower than expected, indicating a short to ground, an open circuit, or a faulty valve.
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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