Scania fault code 4170

Code 4170 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System SCR – Nitrogen oxides (NOx) downstream of the catalytic converter The quantity of nitrogen oxides measured differs from what it should be. Read explanation → EMU Heater H39, overheating The temperature in the element exceeds 110°C. Read explanation → DDU Left-hand loudspeaker 2, short circuit in cable harness Pin SpeakerL2+ and SpeakerL 2- are short-circuited. Only stored when ignition is ON. Read explanation →