Scania EMS DTC 4870 Rotational speed sensor

EMS Engine Management System · Scania · 2 variants

Code 4870 (decimal). Some diagnostic tools show it in hexadecimal as 1306.

In short

The control system has detected low voltage.

Variant 1: Engine speed sensor T75, short circuit to earth

Applies to: EMS10

What does Scania EMS fault code 4870 mean?

How to fix Scania EMS fault code 4870?

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Variant 2

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.