my sprinter has a microtech comp it used to be ok but just yesterday the reds are not even turning on what could it be?? ive checked the fuses but they seem to be ok except for the main engine fuse does that need to be ok for the reds to turn on?
do u think that has anything to do with the microtech as well because you dont need it plugged in for the reds to turn on already tried differ ignition switch as well