Scania EMS DTC 8839 Missing signal from NOx sensor T131 downstream of the particulate filter

EMS Engine Management System · Scania

Code 8839 (decimal). Some diagnostic tools show it in hexadecimal as 002287.

In short

No valid signal from the NOx sensor downstream of the particulate filter.

Applies to: EMS10

What does Scania EMS fault code 8839 mean?

What causes Scania DTC 8839?

What are the symptoms?

How to fix Scania EMS fault code 8839?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.