P3490

Cylinder 12 Deactivation/Intake Valve Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

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

P3487 P3489 P3491