2004 ram 1500 slt 65k mi.,switching from acc to run causes all gauges to go out,today while driving engine light came on and fuel gauge stopped working pulled codes brake switch 1 high rationality, fuel gauge circuit rationality,ecm intermittent data?.. not sure whats goin here the acc issue been like that for a while but this engine light and multiple codes for intermittent data is new. trucks been sitting for a month while i rebuilt the rear end. any help would be great.im thinking crappy grounds but who knows never had this issue before.
and brake lights are working normally by the way and the code for them is active.

 

Sounds like ignition switch is going bad. The electrial portion, not the part where the key goes. Maybe someone with a similar issue can jump in to confirm.

 

bump anyone else. i will get the switch friday.cleaned up grounds tonight not that they were dirty but no engine light an fuel gauge is working at the moment