P3490
Cylinder 12 Deactivation/Intake Valve Control Circuit Performance
P3490 is an OBD-II diagnostic trouble code meaning: Cylinder 12 Deactivation/Intake Valve Control Circuit Performance. Common causes: malfunction of the cylinder deactivation solenoid valve, open or short circuit in control circuit. Estimated repair cost: $17–89.
Symptoms
- Uneven engine operation
- Increased fuel consumption
- Power Loss
- Check Engine Light Is On
- Disabling the cylinder deactivation system
Causes
- Malfunction of the cylinder deactivation solenoid valve
- Open or short circuit in control circuit
- Wiring Harness Problems
- Engine control unit malfunction
- Mechanical problems with the valve system
How to Fix
- Check the condition of the solenoid valve of cylinder 12
- Check the integrity of the control circuit
- Inspect the wiring harness for damage
- Check the operation of the engine control unit
- If necessary, replace faulty components
Related codes
Error P3490 by Vehicle Brand
FAQ
What does the P3490 code mean?
P3490 is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Deactivation/Intake Valve Control Circuit Performance
What causes a P3490 error code?
The most common causes of P3490 include: Malfunction of the cylinder deactivation solenoid valve; Open or short circuit in control circuit; Wiring Harness Problems; Engine control unit malfunction.
How do I fix a P3490 diagnostic trouble code?
To fix P3490: Check the condition of the solenoid valve of cylinder 12. Check the integrity of the control circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3490?
Yes, but get it checked soon
How much does it cost to fix P3490?
The estimated repair cost for P3490 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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