EXHAUST GAS NOX SENSOR RVI/ VOLVO RANGE T/ KERAX// FH/ FM/ FMX EURO6; EXHAUST GAS NOX SENSOR / BEFORE THE CATALYTIC CONVERTER / ATTENTION!!! A CONDITION FOR ACCEPTANCE OF THE NOX SENSOR FOR CONSIDERATION OF THE COMPLAINT IS THAT A PRINTOUT WITH ERROR CODES FROM THE DIAGNOSTIC COMPUTER AND CONFIRMATION OF CLEANING OF THE SCR SYSTEM IS ATTACHED.