Truck Repair: No Dash Gauges On 2005 Frieghtliner, dash guages, caterpillar engine

Question
We have no dash guages on our 2005 freightliner on2 w/ 250hp C7 caterpillar engine.
no dash guages or lights and turn signals are not working
would you have a wiring diagram for the instrument cluster? or am i looking in the wrong direction? Is this a common problem?
This is our business propane truck and have never had electrical problems before. Is this something that we should take to frieghtliner? or could our on-site mechanics take care of it?

Please let me know!

Thanks!

Answer
Hi Jacki,
Have your mechanics check the main cab ground, sometimes it goes right to the starter..not %100 sure on this truck. also, check all the fuses/breakers for the dash and see if there is power there. I think the instrument cluster on these models are electronic so it is possible that the internal module died, but don't go replacing it until you have proven that it has failed cause they are not cheap. Usually dealers are pretty helpfull if you phone and ask for the leadhand/shop foreman...just make sure you have checked the basics first.

good luck

matt