What does the elec. plug for a 2001 Honda Civic EX fuel pump look like?

I am having an issue with it and before I go and get the work done on it (or do it myself) I was wondering what the power connection looked like normally, the power cord that connects directly to the fuel pump (under the backseat). The fuel pump itself has five(5) prongs (3 on top, 2 on bottom) and the plug has the same. But, the plug (from what I can see after disassembly) has 2 on top and 2 on bottom. Makin 4 total, not 5(like the pump itself). And the Fifth hole on the plug has no contact points. It that fifth contact missing or is it supposed to be missing. Why would the pump have 5 and the plug have 4. Please point me in the right direction.