edit didnt read all the way through
A bad fuel pump could pull down the voltage (in a loaded failure condition) when measuring at the pump. To my knowledge there is no fusing in between the relay and the pump assembly. Pull the connector off of the pump and check for +12 volts while disconnected. This will help you rule out the wiring.there is power at the relay but there is no power at the fuel pump connector. Is there any component or fuse between the fuel pump relay and the fuel pump that could cause the voltage not to make it to the fuel pump?