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Ron
Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 33477
Experience:  35 years experience with ASE Certs
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04 Impala, Blower motor continues to run with key off, no

Customer Question

04 Impala
JA: What is the model/year of your Chevy?
Customer: Blower motor continues to run with key off
JA: Any trouble turning the key in the ignition? Do you have a key fob?
Customer: no key trouble, yes there is a fob
JA: What year is your Chevy?
Customer: 04 Impala
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, pulled the 30 amp HVAC blower fuse and the blower motor will stop. Checked the DIC/RKE fuse 10 amp and there is power their, checked A/C cruise fuse and there is power there as well. When these two fuses are pulled the blower motor still continues to run. swapped out blower relay under hood and that is ok as well. Plugged in a good known blower resistor, still same problem
JA: Anything else you think the mechanic should know?
Customer: There is power at the red wire that supplies power to the blower motor.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Chevy
Expert:  Ron Z. replied 5 months ago.

Does this vehicle have Auto Temp Control?

Expert:  Ron replied 5 months ago.

Hello and thank you for your question,

The most common cause for the blower to remain on with the key off is in most cases caused by a failed blower motor control module . The module is located next to the blower motor on passenger side. See the link below for its location. You can test it by removing the Gray/Black wire from the module connector, pin B. If the blower now stops, replace the Heat Vent Air Conditioning (HVAC) control module. If the blower stays on, replace the blower motor control module shown in the link below.

https://dl.dropboxusercontent.com/u/104923897/blower%20motor%20Jul%205.pdf

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