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P3490: Cylinder 12 Deactivation/Intake Valve Control Circuit Performance

What Does P3490 Mean?

P3490 is a diagnostic trouble code indicating: Cylinder 12 Deactivation/Intake Valve Control Circuit Performance. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P3485 Cylinder 11 Exhaust Valve Control Circuit/Open P3486 Cylinder 11 Exhaust Valve Control Circuit Performance P3487 Cylinder 11 Exhaust Valve Control Circuit Low P3488 Cylinder 11 Exhaust Valve Control Circuit High P3489 Cylinder 12 Deactivation/Intake Valve Control Circuit/Open P3491 Cylinder 12 Deactivation/Intake Valve Control Circuit Low P3492 Cylinder 12 Deactivation/Intake Valve Control Circuit High P3493 Cylinder 12 Exhaust Valve Control Circuit/Open