Scania EMS DTC 4865 Rotational speed signals, rotational speed sensor T74

EMS Engine Management System · Scania · 2 variants

Code 4865 (decimal). Some diagnostic tools show it in hexadecimal as 1301.

In short

The rotational speed signals from the two rotational speed sensors have supplied conflicting data as to where in the working cycle the engine is.

Variant 1

Applies to: EMS S7EMS S8EMS S8 (S8PDE)

What does Scania EMS fault code 4865 mean?

What causes Scania DTC 4865?

How does the system react?

How to fix Scania EMS fault code 4865?

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Variant 2: Rotational speed sensor or starter motor

Applies to: EMS S6

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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