I decided to clean and treat the chassis battery terminals today. I disconnected shore power and disconnected the chassis battery. I thought with the chassis battery disconnected now would be a good time to check the AUX Starting System. With the chassis battery disconnected I turned the ignition key on and all the dash lights came on I pressed and held the AUX Start switch and turned the key to start. The engine fired right up and I thought great the system works
. Then it hit me the dash lights came on with the chassis battery disconnected
. I turned off the engine then turned the key back on and the dash lights came on again. I then turned the key to start WITHOUT pressing the AUX start switch and the engine started
Looks like I might have a AUX Start relay stuck in the connect position tying the chassis and coach batteries together. I listened for a click when pressing the AUX Start switch and do not here anything. To cold out to troubleshoot anymore today. Will post more later.