Hi and thanks for using 2CarPros.com.
The relays for the vehicle are located under the hood. I attached a picture of it for you to see. If you are getting a clicking under the dash, chances are it is a blend air or mode door actuator. Take a look at this link and focus on the "What Goes Wrong" section and let me know if that is what you are experiencing.
https://www.2carpros.com/articles/replace-blend-door-motor
As far as a relay price, it is a ten minute job and the part should be under $20.00. The aforementioned actuator requires more time and is located under the dash.
Let me know.
Take care,
Joe
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Thursday, August 30th, 2018 AT 6:14 PM