Originally Posted by bknox0928
I found this post to be SO helpful, very easy to DIY with all the pictures. Any ideas on what else could cause the same thing? My AC would only work on full blast in my 2005 Grand Cherokee. We replaced the blower motor resistor but it didn't fix the problem, any suggestions on what to try next would be greatly appreciated!
I have had this problem for a year and I thought it was the knob that controls the AC!!! I wish I had seen this post sooner!
Swapped out old resistor, put in new one. Everything works fine... except the backlight to the information panel and shift panel don't light up.. I think I read somewhere it's actually a faulty switch in the headlight switch assembly on the steering wheel.
I had difficulty removing the connector to the blower motor resistor, and when it finally came loose, I noticed both end terminals look black (burnt, melted).
bknox, I would guess it might be a faulty contact on in the knob that controls the AC?