This is on my Jeep Patriot but it's all the same guts under the hood.
Prior to this I had gone through all the electrical testing of the wires using the factory service manual. All electrical wiring was ok.
What the code means is the intake manifold runner control is not working correctly. That means that it can't open and close the flaps in the intake manifold which give you better low and high end power by adjusting air velocity.
To remove the IMRC motor, take off the round intake hose from the air box, as well as the smaller hose that goes to the valve cover, and also the plastic part of the air box that goes across the battery.
You can then pull up on the air box and it will just pop out of the rubber sockets it sits in.
The motor sits on the side there, you need a 10mm socket for the screw closest to you, 8mm for the one farthest and 10mm for the one on the bottom.
After that, you can test the motion of everything.
Video 1: Testing the motion
Video 2: Listening for a jam