Scania EMS DTC 8426 Exhaust emission control unit

EMS Engine Management System · Scania

Code 8426 (decimal). Some diagnostic tools show it in hexadecimal as 20EA.

In short

The exhaust emission control unit switches off too early.

Applies to: EMS S8

What does Scania EMS fault code 8426 mean?

What causes Scania DTC 8426?

How does the system react?

How to fix Scania EMS fault code 8426?

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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.

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