I have a 2007 Fleetwood Revolution, C9 Cat with an Allison Trans. I am getting a J1939 error periodically and at the same time several gauges stops working, red warning lights blink on those gauges and where the transmission gear numbers are displayed, they are "x".s or look like cat eyes. This tend to happed very randomly and not all of the errors. Lights, gauges stop working at the same time. It will happen off and on , again and again until things warm up then things work great throughout the  warmer summer.

 While all this is going on, the coach still runs the same (very well). Once driven around 5-10 miles it seems to stop doing it and everything is fine. Someone told me he suspected a TCM or ECM connection or wire could be bad since this problem could be fine for months before doing it again but I had the wiring checked out all appeared OK. However, it seems to only do this in colder weather which makes me wonder if something internally in the modules can be bad?.

The problem I’m having is finding someone nearby that can read Allison error codes. Allison seems to hold their proprietary close to their chest