dashboard

I have a 2005 VOLVO TRACTOR, Autoshift, Cummins ISX. Recently the Dashboard only works at "cold" condition, after 5~20 minutes of starting the engine, the information Display shows up: check lights control module, check vehicle ECU, check air bag, check climate module, finally show "check datalink". Speedmetre, RPM, oil pressure, water temperature gauges and gear position are all dead, only Fuel, Air, Pressure and Turbo gauges work. We have replaced new dashboard, but nothing changed. And we checked J1939 communication wire OHMS is 60 at either back of dashboard plugs and data link. All modules are working good except information module. When dash was out, we did connect the laptop via datalink. We could communicate with ECU normally. The problem looks like the dashboard is so sensitive and easily quits working. We had checked batteries and main ground cables and all fuses. We did the test, after removing all lights control module fuses, ABS module fuse, climate fuse etc., the dashboard sometimes works, but most of the time it is not working, this really drives me crazy, what's the problem, I really need help. Thanks a lot!

 

thx. but its new dashboard.