Need help identifying this code 2021 Freightliner Cascadia DD13

I am registering - SPN 521180 FMI 5

I have looked around here, and on the web and haven't found an answer. NHTSA says it is a manufacturers code to be assigned.

Any help?

Thank you!

Ben

 

The fmi 5 means low voltage or open circuit. Something is unplugged or shorted. I did see one reference to SPN521180 on DuckDuckGo, but when I clicked on it it took me to a spam page. FWIW the search page mentioned an axle sensor.

Say what kind of truck and engine. Someone may know more then.

 

Thanks for your response! Should have led out with that info... 2021 Freightliner Cascadia DD13.

 

Call a dealer and ask what that code is.