Hi Eddy,

Im probably sticking my neck out on this one as Im not familiar with this truck but I think the code means you have a defective lift pump controler, the motor current sensor input is to low, the voltage at the lift pump controler internal sensor is 0.1 volts with no current flowing in the motor circuit I think you may end up replacing the lift pump controler if you cannot get it repaired.

Regards titus