The control module detected an interruption (open circuit) in the Cylinder 2 Deactivation/Intake Valve Control circuit, so the expected electrical continuity was not present.
TuningBot DTC Database · v4.37.14
P3409 Cylinder 2 Deactivation/Intake Valve Control Circuit/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P3409 means
Related and nearby codes
How to read P3409
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P3409
What does P3409 mean?
Cylinder 2 Deactivation/Intake Valve Control Circuit/Open. The control module detected an interruption (open circuit) in the Cylinder 2 Deactivation/Intake Valve Control circuit, so the expected electrical continuity was not present.
Is P3409 generic or manufacturer-specific?
P3409 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P3409 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
