Good day, my name is Miguel, I am here in Paraguay . South America, i need the trouble codes for a truck Volvo NL 12 , engine cummins, american version, i read in the memory 3 (three ) faults, i descript one to one, i need the significated of the three,: 9-3 and 12-14 and 10-9 . in the check engine appear ,moree not the significated, please help me. tHANKS

 

Welcome to the forum,

Unfortunately, I do not know a think about fixing Volvo Trucks. This forum mainly deals with Volvo Cars. Your best bet is to do a search for the codes and see what you come up with.