I've now got into the trunk, and got access to the fuel pump. At first I wasn't sure what of the 2 plugs were for the pump, and what was for the fuel level, but after unplugging the one with 4 leads going to it, the cars fuel gauge went to empty, so that lead me to the conclusion that the plug with three leads going to it are for the pump. I couldn't check voltage for initial start up (I don't have enough arms)

but voltage going to the pump with key turned on is 5 volts. I assume this to be correct, as the top of the unit said 5 volts on it. I would therefore have to come to the conclusion that the pump itself is no good.