Code result
P3481
Cylinder 10 Deactivation
Moderate severity
What it means
The engine control module has detected a fault in the cylinder 10 deactivation system. Found on V10/V12 engines — cylinder 10 cannot reliably switch state.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Deactivation solenoid failed
highOne of the most commonly reported causes for this code — check this first.
Lifter stuck
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P3481 freeNo credit card required