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2003 Trailblazer how do you replace the heating ac control switch replaced blower module and fan still doesn't work HELP?
Wiki User
∙ 17y ago
have you checked fuses and relays? Yes, I actually replaced the blower motor module & that didn't work. The Blower Motor itself spins freely & there doesn't seem to be any electrical issues. Could it be the Blower Motor speed switch??? If so, is that hard to access?
Wiki User
∙ 17y ago
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