Dash Guages Inop

[Bud Bishop]

2008 Thor Mandalay 40H Dash gauges and instruments problems.
Were intermittent now all the time not working one shop could not find or diagnose, but gave me a code # J1939 At times displays on dash no communication, other times nothing. Has anyone had this system failure, coach runs fine and other than gauge cluster other items on dash working.
Final built on a Freightliner chassis

[TurnerFam]

sounds to me like a loose 'ground' wire, of some sort, probably within the wiring harness cluster's connection to the chassis...