What does code P3455 mean?

Q: What does code P3455 mean?

Cylinder 7 Exhaust Valve Control Circuit Low. P3455 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 7. This circuit typically operates a solenoid or actuator that adjusts exhaust flow, and a low signal means the PCM sees voltage below the expected threshold, which can prevent the valve from functioning correctly.

DTC codes / P34xx · Auxiliary emission controls / P3455

P3455Cylinder 7 Exhaust Valve Control Circuit Low

P3455 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 7. This circuit typically operates a solenoid or actuator that adjusts exhaust flow, and a low signal means the PCM sees voltage below the expected threshold, which can prevent the valve from functioning correctly.

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.