This truck does have 3 current sensors the Pump motor sensor is conected to a 325 Amp fuse that is in turn connected to the pump IBGT, in fact all three sensor are in a line with each other and sit over the buss bars. As to the logic have you set the dipswitches to the same position as the old unit ,this tells the logic what the truck is, mast and size of hyd. valve ,4 or 3 wheels. If you need more info please come back to me.