All the gauges on my dash are not working. I went 400 miles yesterday and only 2.9 miles were registered on the odometer. Some times the speedo and tack will work for a couple seconds together then shut off. The gas gauge comes on for a couple seconds once in a while. the check engine light is always on when the gauges are not working. No codes. The dash originally started having problems with  the ABS light coming on and off. None of the gauges work now.

The truck does run fine other than nothing working on the dash. Anyone else had this problem? I took it to the local auto electric shop by me and they checked the grounds, ECU and the computer on the the Engine. I changed the fuse box and module that is on it. The dash has also been changed and tested.

CCD network issues. Using what I know from the 2nd Gens I would say that you need to check for CCD network voltage typically 2.49V and 2.51V reference to body ground.

What is a CCD?

What is a CCD?

 

Here is the answer...

http://articles.mopar1973man.com/general-cummins/34-engine-system/81-ccd-data-bus