Digital odometer display not displaying anything .

not sure about the corenado, but on Columbia, the same fuse controls all the gauges. In your case if it were a fuse, the odom wouldn't be the only problem. First off, check if the ecm is recording odom with a scan gaudge. Any shop should be able to check. If its just the odom display not working, it could be a lose/broken conection under dash.

 

You need to replace the speedo unit, there is no real fix for it that can be done by either a mechanic or by Freightliner, they are pretty much scrap if they don't display.

 

In all clusters like this, I have only seen 1 fuse for the whole cluster, so I doubt a fuse is your problem. With a data link problem, you will get some sort of feeback, along the lines of "No Data" on the odometer display, so I don't think it's a data link problem either. If all the other gauges work, I'm leaning toward the cluster being bad.

 

I have 2021 freghtliner cascadia .,., odometr not working? and ambient temperature sensor not working (I was exchange 2 time the sensor)

 

Hello, was you able to solve the problem?
My odometer also freezed, and ambient temperature sensor is changed two times but still has the code telling that it’s not working!
Also, recently, the DEF light started blinking red even though it is full the voltage reading disappeared as well!

 

Hi I have the same problem did you find the problem

 

Change or repair your CPC4 module, you can do it in Tennessee close to Nashville area, it is called CPC doctor, look up online find a place talk to them get the pricing pull up your CPC from your truck mail it to them. Wait couple days receive it put it back. They also have to update the software.
It’s better to do it now rather than later because you will have more issues. For example, your gas pedal will stop working and other things.