What does code P3447 mean?

Q: What does code P3447 mean?

Cylinder 6 Exhaust Valve Control Circuit Low. P3447 indicates that the powertrain control module has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 6. This circuit typically operates a solenoid or actuator that adjusts exhaust flow, and a low signal means the computer sees less voltage or current than expected, which can prevent the valve from moving to its commanded position.

DTC codes / P34xx · Auxiliary emission controls / P3447

P3447Cylinder 6 Exhaust Valve Control Circuit Low

P3447 indicates that the powertrain control module has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 6. This circuit typically operates a solenoid or actuator that adjusts exhaust flow, and a low signal means the computer sees less voltage or current than expected, which can prevent the valve from moving to its commanded position.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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