A friend has a 2007 Coachman Cross country. Recently had a belt break which was fixed. While they were fixing the belt they noticed a rear tire coming off the rim...... fixed that. Now the funny part..... went to pick it up and the dash gauges are not working. No speedometer, tachometer, oil pressure, water temp or volts. Air gauges are working but that’s it. Fuses all test good. They were working when they brought it in. Any ideas?