This thread has been very helpful to me so far, but it ended before my problem was found. My car is a 1999 Sunfire with the same problem, but apparently a different cause. I always have the blower on, and while travelling this summer started smelling hot circuits. The next day the blower would not turn on. When I returned home I started by going to the junk yard and getting another blower because the odor I had smelled was very similar to that of burning fields; the replacement motor also did not work when installed. It was at this point I began doing diagnostics. Both motors work when attached to the battery, although the original motor does not turn as freely as the one I got from the junk yard.
Next I checked all the fuses in the system and replaced the blower motor relay. Still nothing. At this point I found this thread and completed all the diagnostics it recommended, hoping that Narcissus had the more serious problems because that is what I expected I have. I have power at the mode switch, which is one step beyond the diagnostics you detailed to Narcissus, but I have no idea where to go from here and I am not finding anything else on the internet about this problem. Can you help me go on from here?
Wednesday, September 28th, 2016 AT 5:52 PM