I have an 05 6.0 Crew Cab Lariet. Lately iv been driving down the road and my dash cluster will reset, the chime goes off and the gauges do a sweep like when the key is turned on. It will do it randomly, bumps dont matter, it will do it idling at a light. It was a now and then thing and hadnt done it for about 3 weeks then yesterday it started doing it fairly frequently. This sucks! No loss of power to anything else except radio but it dosent lose the memory. I figured a loose connection to the cluster so i checked them and it was ok. Any ideas?? Maybe a bad cluster.
Not sure this helps. My dash gages and radio went dead and my interior lights were on all the time. Everything happened at once. I ended up pulling the dash and instrument panel and installed a remote circuit breaker to turn the interior lights off until I could track down the problem. Very dangerous driving at night with interior lights on. It ended up being a bad "delay" relay.