What does code P2D19 mean?

Q: What does code P2D19 mean?

Exhaust Flow Control Valve C Position Circuit Low. P2D19 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the position signal circuit for exhaust flow control valve C, which is used to manage exhaust flow for improved low-end torque and emissions. The PCM expects a voltage within a calibrated range as the valve moves, and a sustained low reading tells it the circuit is shorted to ground, the sensor is faulty, or the valve is stuck.

DTC codes / P2Dxx · Hybrid propulsion / P2D19

P2D19Exhaust Flow Control Valve C Position Circuit Low

P2D19 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the position signal circuit for exhaust flow control valve C, which is used to manage exhaust flow for improved low-end torque and emissions. The PCM expects a voltage within a calibrated range as the valve moves, and a sustained low reading tells it the circuit is shorted to ground, the sensor is faulty, or the valve is stuck.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.