Blower motor doesn't work

Hello,

It sounds like the blower fan went out but to be sure here is a guided to help test it and the air conditioner a d blower motor wing diagrams so you can see how the system works.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester


Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

I am talking about the fan inside the car for your heater and a/c to blow inside the car. Maybe you call it a blower instead of a fan. Is there a relay for this fan/blower somewhere?

There's no relay involved or blower motor resistor,it uses a blower motor control module instead

Check the HVAC blower fuse if okay-the problem is coming from the blower control module or the HVAC contol module-have it checked

read the guides below on testing wiring and using a test light


https://www.2carpros.com/articles/how-to-check-wiring


https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester


The wiring for the blower motor is attached below

I will check that, Thanks for your help!

Where is the blower control module and the HVAC module at?

Im sorry at this present moment I cannot enter the GMC Acadia module-sorry again-when available I'll send it asap

I found it and for now have it going. THanks for your help.

Hey svjorn,

I'm having the same problem you had. The blowers won't seem to turn on. I was wondering what you did to fix it.

Thanks for the help!

Having the same problem. Blower works. Where is the hvac module located? Fuses are good.

Hey STEVEOG, found the module for you it looks like it is integrated into the panel itself here is the diagram I found, let me know what you find.

I had this problem is was the blower motor cost me $121.00 for anew one all fixed! I love this site.

Where r relays in underhood fuse box for a/c? Front fan does not work but back ones are fine. Will changing these help with fan problem

it ' in the underhood fuse box and should be clearly marked on undreside of cover. it'sa 40 amp fuse. it could be the module is no good as well or the control.