Scania EMS DTC 9988 NOx sensor T115 at silencer outlet, value too high

EMS Engine Management System · Scania

Code 9988 (decimal). Some diagnostic tools show it in hexadecimal as 002704.

In short

The NOx value at the silencer outlet is higher than expected.

Applies to: EMS10

What does Scania EMS fault code 9988 mean?

What causes Scania DTC 9988?

How to fix Scania EMS fault code 9988?

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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.