Scania EMS DTC 4612 Rotational speed sensor

EMS Engine Management System · Scania · 2 variants

Code 4612 (decimal). Some diagnostic tools show it in hexadecimal as 1204.

In short

The signal from rotational speed sensor T74 has indicated an implausible rotational speed increase between two subsequent pulses.

Variant 1

Applies to: EMS S6 IoM singlespeed (S6IM)EMS S6

What does Scania EMS fault code 4612 mean?

What causes Scania DTC 4612?

How does the system react?

How to fix Scania EMS fault code 4612?

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Variant 2

Applies to: EMS S6 (EMS S6 EuroIII)

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 4612 in other Scania systems