Hi Guys, I have a Toyota 7FBEU20 and all of the sudden when backing out of a lift the display went dark and no travel or lift functions working. The back up alarm, horn and strobe light are still working. I have checked all fuses, including the fuse under the passenger side step - all good. the battery is fully charged and has 48v at the connector when unplugged. When battery is plugged in there is only 10v. I removed battery and checked all cables under the tray - all good. I removed the truck side battery cables from the main contactor and pump controller and the voltage reads 48v. Wondering if I have a controller issue? Any Ideas?