I've got a 2001 Ram 1500 with 101000 miles, runs good , but all of a sudden the gauges stopped working and "no bu5' showed up in odometer window. Truck still runs. Had scan done and was told there were no codes. Called dealer and their resdponse was "sounds like the battery" yea I got confidence in them!!!!!!!! Anybody got any ideas where I can start Checking. Have checked fuses and battery.