2013 Chrysler 300C check engine light

2013 - Chrysler 300C , 3.0 L Turbo Diesel. Has an engine light on and Red Lightning sign on dash. No power does not accelerate. Any suggestions.

Have the codes read for free at an auto parts store and report back. I don’t know anything about diesels but assume they use the standard OBDII style codes. You will get codes like P0400 if so.