I don't know but post #6 says
http://www.irv2.com/forums/f124/scan...de-170164.html
Scangauge tells me the code 639 12 127 is a data link failure. So either the engine failed to put out data or a connection was loose. Engine has started correctly three times so hopefully it was one of those electrical or board gremlins that sometimes happen.
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2003 National Tradewinds LTC 7374 FL XC-Chassis IFS, Steer Safe, 8.3 ISC 350 Cummins, 3000MH Allison, 2023 Equinox, Blue Ox Tow-Bar, Brake Master Air Over Hyd
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