gunrunnerjohn posted:Keith, wrong! The early Legacy had no diagnostics. Do me a favor before we keep going down this road. Find ONE user manual that states that the flash code of 3 is a thermistor problem.
Of course, early Legacy engines didn't have diagnostics. Jay's U30C isn't an early Legacy engine; he eventually told us it's from 2012.
The information I offered is from Dean Brasseur's video, not from a survey of owner's manuals. Did you watch Dean's video? In it, he says, "Starting with the Vision Big Boy, the codes changed...." If he's wrong, we should let the folks at Lionel know.