Scania EMS DTC 8504 Throttle

EMS Engine Management System · Scania

Code 8504 (decimal). Some diagnostic tools show it in hexadecimal as 2138.

In short

Poor conformity between the throttle potentiometers.

Applies to: EMS S8

What does Scania EMS fault code 8504 mean?

What causes Scania DTC 8504?

How does the system react?

How to fix Scania EMS fault code 8504?

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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.