Mechanics

GMC SAVANA FUSE PROBLEM

2003 GMC Savana • 80,000 miles

My AC/ heater fan stopped working w/o warning on all speeds. I checked the relay and its fine, tested the fan and it works, bought a new fan resistor and plugged it in and still not working. What else could it be?
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RickeyE
February 26, 2013.



Did you check for voltage, anywhere? Did you check applicable fuses? Not only check the fuse, check for voltage on the fuse circuit. The hvac fuse, goes hot with the key on. The blow fuse is high speed only, hot all the time.

Wityh hvac turned on, check voltage and ground at blower connector. Purple wire is voltage, black wire is ground. Check both.


JDL
Feb 26, 2013.