My '03 Trailblazer is having a malfunctioning HVAC system.
The blower motor only works intermittently and every great once in a while it will turn on by itself (with ALL switches turned OFF) and will continue to run AFTER ignition is turned off.
From what I gather, it is on an independent circuit, so turning the key off will have no effect whatsoever if the module is not acting correctly.
The fuse (#35, I believe) is good, so that just leaves the module underneath the dash, correct?
I am about to go to a pick your own part yard and see if I can get lucky, but want to make sure I am getting the right piece. What do ya'll think?
Thanks in advance!