Where is the idle control valve located on dodge ram 1500 3.9 engine?

On a Dodge Ram 1500 with the 3.9L engine (Magnum), the Idle Air Control (IAC) valve is located on the throttle body. It's a small, usually black, electrically controlled valve mounted directly to the throttle body itself. You'll find the throttle body on the intake manifold, where the air intake tube connects to the engine. The IAC valve is usually easily visible once you locate the throttle body.