hi everyone, i recently bought a 01 Jeep Grand Cherokee limited and i just noticed that the passenger side blows cold air in any mode. i thought it would be a simple fix because im a mechanic myself. i did a lot of research online and found out how to get the fault codes out of it. i came up with code 52 and 56. i am willing to try to fix it myself so if u fellow greasemonkeys out there have any info i can use, i would really appreciate it. thanks...

This is a common failure. See this thread: http://www.automotiveforums.com/vbulletin/showthread.php?t=622717&highlight=blend+door

I believe there is a TSB out on this. The dash has to come out and this is an expensive job. Good luck. SJ