CECU CODE

[JUSTWUFN]

I have a 2004 Yukon and CECU code/warning came on in the instrument panel. What is this code/warning mean?

 

[SLCHOE]

CECU code?

 

[JUSTWUFN]

CECU code?

I did some digging and found out the CECU is the electronic control module. Evidently mine has gone bad. Strange part is that there was no alpha numeric code showing , just CECU. I guess I will do some searches on the ECM to see how to change the unit out.