Scania fault code 5839

Code 5839 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System NOx sensor T131 upstream of the SCR catalytic converter The NOx sensor downstream of the particulate filter, T131, indicates a fixed value, even though the engine speed and load vary. Read explanation → EMD NOx sensor T131 upstream of the SCR catalytic converter NOx sensor T131 upstream of the catalytic converter indicates a static value. The value should vary according to engine speed and load. Read explanation → EME NOx sensor T131 upstream of the SCR catalytic converter NOx sensor T131 upstream of the catalytic converter indicates a static value. The value should vary according to engine speed and load. Read explanation → EMO NOx sensor T131 upstream of the SCR catalytic converter NOx sensor T131 upstream of the catalytic converter indicates a static value. The value should vary according to engine speed and load. Read explanation →