Ram Cummins Malfunction Light - Needed new batteries

sch911 - I agree that it was sort of a coincidence. I was going to replace the batteries anyway. I figured I was on borrowed time.

Would you happen to know if the error codes in memory ever go away? I am thinking that maybe they do not. I still had an old Emissions error code in memory from a previously fixed problem. I was told that after "X" number of starts, with no problems detected, that any old error codes are erased. But I'm not too sure that's really the case.