My 95 Roadtrek is missing the 12vdc to the water pump, on have 3vdc. Have the 12v coming from power center, and 12v at the pump wall switch. A red wire 12v from the power center is at the pump switch which changes to a pink wire supplying 12v going out from the wall pump switch. Somewhere, the two wires coming out of the floor at the water pump are green and yellow. Somewhere, there is another connection that takes the 12v pink wire and ties it into one of the leads at the water pump.but I donít know where the wiring goes to follow the 12v from the pump wall switch. Where should I look?