How do you reset an idle air control valve?

You can reset the idle air control (IAC) valve by turning the car on, putting the car into park, pressing the brake down, then pushing the gas pedal down, counting down about 5 seconds, turning the car off, waiting 10 seconds and start the car again, checking to see if the car is idling properly. via

How much does a IAC valve cost?

The average replacement cost of an idle air control valve is between $120 and $500. The parts could cost anywhere from $45 to more than $400, while the labor is only around $70. via

How do I adjust my idle speed control? (video)

https://www.youtube.com/watch?v=9tHA9t2U8-Y