I had a problem last Winter, the coldest for us in 10 years, where rats nested below the fuse box and chewed on the wires in back of the fuse box. Several wire strands were broken and shorted. Symptoms for me was no guages displayed and no click from the starter or fuel solenoids. I replaced all fuses, check battery connections, and load tested the battery as the manual suggested. Dealer pulled fuse box and saw wires and rats nest.
Now it's Spring and I've gotten all the excess deer corn in feeders and thought I killed all the rats in the tractor shed. Tried to start last weekend (4/1/18) and had guages, but no activation of fuel solenoid. I pulled fuse box and sure enough, the wires were chewed again and the black wire to the fuel solenoid fuse had about an inch of wire missing. Does anyone know of anyplace where I can order the John Deere wires in the correct diameters and colors?