What does code P3495 mean?

Q: What does code P3495 mean?

Cylinder 12 Exhaust Valve Control Circuit Low. P3495 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 12. This circuit typically operates a solenoid or actuator that adjusts exhaust valve timing or lift, and a low signal means the PCM sees voltage below the expected threshold, which can prevent proper valve operation and affect engine performance and emissions.

DTC codes / P34xx · Auxiliary emission controls / P3495

P3495Cylinder 12 Exhaust Valve Control Circuit Low

P3495 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the electrical circuit that controls the exhaust valve for cylinder 12. This circuit typically operates a solenoid or actuator that adjusts exhaust valve timing or lift, and a low signal means the PCM sees voltage below the expected threshold, which can prevent proper valve operation and affect engine performance and emissions.

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.