I just purchased a truck few months ago and since then I keep having problems even after spending thousands on dealers. if anyone knows how to fix this errors it will be so much help
SCR is emissions, It will have to go to a Volvo dealer (Guessing its a D13 ?) If it has DEF then Box 1 (AKA the Pancake) could be giving the truck issues.
DEF dosing unit faults are/were common on Volvo/Mack engines....the granite i used to drive was in three times for the same fault (3 month span, fall/winter of 2013). twice they "cleaned and flushed" the def system, last time they replaced the dosing unit with an upgraded version and its been fine since, my buddy drives it now and hasnt done it again....all the work was waranteed.....