Unit can be jumped at starter relay, but will not start at bush button, Also no lights at Alllison display panel. The head lights work horn works?I have 24 and 12 volts in fuse panel as well. so when I opened up VIM the fuses both have 24 volts. When you plug in main fuse I see cats eyes on display for split second then I hear #3 clicks in VIM relays then nothing?? Crazy thing is when I check from ground post at fuse panel to the 12 volt post or 24 volt post my multi meter reads good. if I check battery ground to ground in fuse panel they are not common ?? what the heck? Is ground on battery should be same as ground at fuse panel right?? Another thing, there is a ground wire from harness off terminal behind Allison selector. when I check resistance from there to ground at fuse panel it reads 0.00 ohms and thats good, but as soon as I turn the green power switch on I get 19 ohms. both ends of my meter are touching frame nothing should effect the resistance to a ground 4 feet away. So I grabbed a jumper cable and clamped it to ground on battery to a bare spot on and still no start. Im a John Deere mechanic and need to bang my head on something. Itook my spare tire off so I can get my head wrapped around a power junction that I found behind cab. I followed battery cables and thats where I'm at now. Im not sure how that unit works but maybe thats part of my issue. I tried going through the M1078 TM for no lights at Transmission display, but the schematic is wrong and my VIM has more than 16 pins on the big one (3 rows not 2 rows). So I am in need for schematic for A0 M1079 1994 model or diagnostic procedure. If anyone has any idea please let me know Thanks so much!