On a 2007 it's in a trapezoid shaped plastic box on your passenger strut tower. In the box will be 3 or 4 relays depending on whether you have HIDs or not. The pump relay is the front left when facing it from the front of the car. When you pull the relay you will see a group of 3 slots and a group of 2 slots. Jumper the two slots to run the pump.