I have a 2008 IC CE300 with the dt 466 .The last few days it doesn't want to start . After everything turns off after the key is on we have a yellow triangle and the odometer says engine warning . I thought it was the fuses in the battery box . After messing with them bus would start . So I thought aha !!!I changed the fuse connections . Then this morning bus wouldn't start again and was showing same issues . Checked my work over and it looked great . So I went back to ignition switch . I turned it off and back on a few times about the third time engine warnings off and bus starts . What I am asking is can the ignition switch have something go bad in there ? When I looked at the switch it's kind of sunken and odd looking ? Thanks
Check the weather pack connector (3 or 4 wires) at the batteries for burnt terminals. I've eliminated that connector on a few of my DT's for the same symptoms.