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Chevy Tahoe: My front dash fan control is not working. the…

Customer Question
My front dash fan control...
My front dash fan control is not working. the display lights up, and I can adjust the temp and fan speed, but nothing happens. I do have my rear AC that works. I have tried to replace the fan control relay, as well as checked the fuses that are associated with the climate system. It all seems to be fine. any suggestions?
Its a 2012 chevy tahoe z71
Submitted: 3 years ago.Category: Chevy
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Answered in 27 minutes by:
5/29/2015
Chevy Mechanic: Pete, Auto Service Technician replied 3 years ago
Pete
Pete, Auto Service Technician
Category: Chevy
Satisfied Customers: 33,303
Experience: 14 years GM dealer Technician.
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Hi,my name is ***** ***** I will be happy to try to assist you with this.I may need more information in some cases to help with answering your question.
Does your model have the Auto Functions on the heater ac control or the manual controls?
Was the blower control module/resistor replaced at all?
Let me know so we can continue,thanks Pete.
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Customer reply replied 3 years ago
do you mean on the control panel? It has auto and manual.resistor was not replaced (that i know of)
Chevy Mechanic: Pete, Auto Service Technician replied 3 years ago
O.k.,the most common cause for this issue here is the blower motor resistor/control module failing.This receives the signal from the heater/ac control panel on the dash then takes the signal and controls the blower motor speed.This is the most common component that fails on this model and causes no blower/fan operation like this here.If this has not been replaced it needs tested to see if it is the component at fault and replaced.
If you have a multi meter to test electrical with I can tell you how to test this just let me know.I font someone that does have this will need to do the testing.
Thanks Pete
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