My 1010 Diesel manual transmission all of a sudden will not start with the key. I tested the start switch start position and there is power. No power at the clutch safety switch . Checked safety switch with an ohmeter and it functions as it should. I can start the machine with a screwdriver by shorting out the solenoid to the starter. If only I could find a schematic on line. I have the Agco wiring harness and components drawing , but it is not a schematic. It lists a fusable link but does not say where it is located . Any help appreciated