Hi AlfPrev, welcome to the site. I had the same codes on my car when I purchased it. I had the IMRC stuck open, I took the box out and opened it up and did a repair the I found on this site. Link- http://www.focusfanatics.com/forum/showthread.php?t=222180
If your not getting any power to it, take a voltmeter to the connector that goes to the IMRC box and test for power. As for a fuse, it should be fuse #10 on under your dash. Let me know if any of this helps.