1999 monaco Diplomat six spead allison transmission shows wierd light instead of N, R, or D. the rv will not and the dash light shows check transmisson. is their anything I can check before having it towed to a shop?
Re: allison tramission not showing gear aon indicator
You can always check the fuses to make sure they're okay. If you have a wiring diagram, you can also make sure the ECU is getting input power and ignition power.