I am loading a wiring diagram for you. If it does not load search for a post in this forum titled starter going. If the relay is clicking then more than likely the relay is good,but the voltage is not getting from the relay to the starter. You can pull the relay and turn it over to verify the pin numbers. When the relay is energized power goes from 30 to 87. You can jump the relay and if the rest of the circuit is good the starter should crank. There are problems with the IPM (factory name for underhood fuse bolck) having internal corrosion and corrosion underneath where the harnesses connect.