june 21st, 2018 - flash code pid sid fmi fault description circuit self test fault ecm 632 0 254 12 ram memory cpu self test fault ecm school bus fleet magazine forums''dt466 i have codes 254 controller 1 fault fault mode pos august 25th, 2010 - 2006 international 4300 dt466 i have codes 254 controller 1 fault fault mode id 8 and 6 also code
scanner says 8 engine codes. they are: sid0034 fmi=4 voltage below normal or shorted to low source. sid 34 exhaust back pressure sensor spn0175 fmi=3 voltage above normal or shorted to high source. spn175 engine oil temp. spn0102 fmi=4 voltage below normal or shorted to low source spn 102 boost pressure. spn0100