Question about 2003 GMC Envoy
There is no relay, first check all of the HVAC marked fuses in the rear fuse panel. If fuses are good, problem could be a bad blower motor or the blower motor resistor pack. If this is Automatic Digital HVAC, then that has a Blower Motor Control Module.
Posted on Sep 30, 2010
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Posted on Jan 02, 2017
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