P3441: Cylinder 6 Deactivation/Intake Valve Control Circuit/Open — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
Cylinder 6 Deactivation/Intake Valve Control Circuit/Open. Basic catalogue definition; diagnostic details have not yet been reviewed.
Affected system: Powertrain
Symptoms
- The engine warning lamp may illuminate; some engines run roughly or hesitate.
- Cylinder-deactivation problems may coincide with increased fuel consumption.
Possible causes
- Damaged or corroded wiring at the cylinder 6 intake-valve/deactivation control solenoid.
- A defective solenoid or an engine-oil supply problem can affect operation; the open-circuit designation makes an electrical check essential.
What to check
- Check related codes and the engine-oil level and condition.
- Inspect the relevant cylinder's solenoid connector and wiring for an open circuit or poor contact.
- Measure circuit continuity and solenoid resistance against the engine service specifications; verify oil-pressure-related faults separately.
Also written as: P3441-00, P344100 (some scan tools add the fault-type byte, e.g. -00).