Scania EMS DTC 9992 NOx sensor (T131), low oxygen signal value

EMS Engine Management System · Scania

Code 9992 (decimal). Some diagnostic tools show it in hexadecimal as 002708.

In short

The oxygen signal from the NOx sensor shows lower values than expected.

Applies to: EMS10

What does Scania EMS fault code 9992 mean?

What causes Scania DTC 9992?

How to fix Scania EMS fault code 9992?

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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.