P3411 code meaning
Cylinder 2 Deactivation/Intake Valve Control Circuit Low
Powertrain system Generic code P34xx codes Check engine light
What P3411 means
P3411 means the control output for the cylinder 2 deactivation valve sees a short to ground. GM lists it for the L84 V8 (2019), whose Dynamic Fuel Management can switch off any cylinder: below 0.5 ohm to ground with the low-side driver off, 20 failures in 25 samples every 250 ms, at least 11 V on the powertrain relay and 425 rpm. It is a Type B fault, so the lamp lights after two trips in a row. GM notes that some controllers set P3409 together with it. On engines where cylinder 2 cannot be deactivated the code has no use. The fix is usually in the wiring or the solenoid in the engine valley; P3412 is the short to power.
P3411 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P3411
- Check engine lamp after two trips
- Dynamic Fuel Management inactive, engine stays on all cylinders
Common causes of P3411
- Most likelyDamaged insulation lets the control wire touch ground
- PossibleCylinder 2 solenoid shorted internally
- Less likelyFaulty engine control module driver
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Cylinder deactivation solenoidWiring harnessECM
What each part of P3411 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 3 | Mixed range: generic and manufacturer-specific codes. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 11 | The exact fault in that area. |
What to do next
- Note P3411 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P3411
What does P3411 mean?
P3411 means "Cylinder 2 Deactivation/Intake Valve Control Circuit Low". P3411 means the control output for the cylinder 2 deactivation valve sees a short to ground. It is a generic code, so it means the same on every make.
Is it safe to drive with P3411?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P3411 fail an emissions test?
Yes, it can. P3411 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P3411 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P3411 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.