I have a 4100sca with twin diesels. The fuel transfer pump is not working. I am getting no current to the pump. The switch only has 2 wires going to it. Does anyone have a schematic of the pump. I don't understand how the pump can be reversible if only two wires go to the switch. I understand it is a dc motor and by switching the positive negative the motto will run backwards. Any help will be greatly appreciated.
fuel transfer pump
Linear Mode
