2006 Impala Fuel Pump Wire Info?

first.... have you checked the fuse box to see if the fuel pump relay fuse is good?? you definitely have pinned it down to the fuel pump i am positive. here is a simple solution. find the fuse/relay box cover under the hood. it will show you under the lid the location of the fuel pump relay(which many times is the problem more often than the pump itself). have some one turn on the ignition while you touch the relay, if you do not feel it "click" then you have found the culprit and any local carquest or napa can fix you up.

if it does click then it is working. next test the terminals that the relay plugs into(if this will be too complex keep contacting me and i can walk you thru everything). 1 will be a ground, 1 will show 12v all the time, 1 will show 12v with the ignition on, and 1 will show nothing, this is the power wire that goes out to the pump. using an inline fuse holder with a 10amp fuse in it connect into the terminal that shows12v with the ignition on and jumper it over to the terminal that goes out to the pump. does the pump turn on?

if not, you have 1 of 2 things going on. either a bad pump or an "open" (a wire that has the little copper strands inside broken or is cut in half). if you get to this stage your next step is...remove the bottom cusion of the rear seat to gain axcess to the pump. remove the cover and you should see the top of the pump with the wires going in. with your jumper still in place up front, test the wires going into the pump until you find one that shows 12v. then you do disconnect your jumper and see if the voltage goes away. if it does you have found the right wire and it does indeed have voltage going back to it, which means that your pump is bad. if there is no voltage the wire has on open somewhere between the relay and the pump and needs to be repaired or replaced.