What does code P3499 mean?

Q: What does code P3499 mean?

Cylinder Deactivation Pressure Sensor Bank 2. P3499 indicates that the powertrain control module has detected an implausible or out-of-range signal from the cylinder deactivation pressure sensor on bank 2 of the engine. This sensor monitors oil pressure within the bank 2 lifter gallery or deactivation circuit, and the code sets when the reported pressure does not match expected values for the current operating mode. The fault can prevent the cylinder deactivation system from functioning, often without affecting normal engine operation.

DTC codes / P34xx · Auxiliary emission controls / P3499

P3499Cylinder Deactivation Pressure Sensor Bank 2

P3499 indicates that the powertrain control module has detected an implausible or out-of-range signal from the cylinder deactivation pressure sensor on bank 2 of the engine. This sensor monitors oil pressure within the bank 2 lifter gallery or deactivation circuit, and the code sets when the reported pressure does not match expected values for the current operating mode. The fault can prevent the cylinder deactivation system from functioning, often without affecting normal engine operation.

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.