eletric cooling fan not running
 

2002 Audi Allroad 2.7 my cooling fan that should come on when you run the AC does not come on , and the aux cooling fan will not come on, its been in the high 80"s in my area and when I sit in traffic my car temperature starts going up and my aux cooling fan will not come on I checked the fuse its fine I don't know where the relays are located or which one it is or could it be the fan control module IDK could someone please help me with this issue ? thanks mike