Scania EMS DTC 4133 SCR control unit

EMS Engine Management System · Scania · 3 variants

Code 4133 (decimal). Some diagnostic tools show it in hexadecimal as 1025.

In short

The NOx sensor at the silencer outlet, T115, indicates a fixed value, even though the engine speed and load vary.

Variant 1: NOx sensor at silencer outlet, fixed value

Applies to: EMS10

What does Scania EMS fault code 4133 mean?

What causes Scania DTC 4133?

How to fix Scania EMS fault code 4133?

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Variant 2

Applies to: EMS S6

Variant 3: T115 NOx sensor downstream of the catalytic converter

Applies to: EMS S8

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

Code 4133 in other Scania systems

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