P3484Cylinder 11 Deactivation/Intake Valve Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P3484 signals that the control circuit of the cylinder 11 deactivation or intake valve actuator is too high, for example because its wire is shorted to a battery feed and the module detects it when switching the output on. No manufacturer documents this code publicly; J2012 reserves the codes for cylinders 9 to 12 for engines with more than eight cylinders. Twelve-cylinder engines that shut down cylinders, notably the Bentley W12 in Bentayga and Continental GT and the Lamborghini Aventador V12, describe their systems as switching off a whole bank, with Bentley stating that the valves keep moving. P3484 thus fits only a design with a dedicated valve actuator at cylinder 11. The control module will normally cancel deactivation and run on all cylinders. P3481 and P3483 are the remaining electrical faults.
- What you may notice
- Check engine lamp on
- Reduced-cylinder mode cancelled
- Likely causes
- LikelyCylinder 11 control wire touching battery voltage
- PossibleCylinder 11 actuator coil with shorted turns
- RareControl module driver damaged
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.