xc60 2010 fault code
 

What is this code, it is coming after kompressor replacement, ECM-P251913 ?
Vida not can say anything for this.

Vida explains the code and possible causes quite nicely.

In the Initial State tab of Fault Trace, click on the code then View Information bottom left of the screen or manually search for the code but replace the dash with a space so search ECM P251913 not ECM-P251913

Yes. Vida now says this, look for possible contact malfunction.

This looks like a dirty EGR valve