Scania EMS DTC 4135 SCR control unit

EMS Engine Management System · Scania · 3 variants

Code 4135 (decimal). Some diagnostic tools show it in hexadecimal as 1027.

In short

The level of nitrogen oxide is higher at the NOx sensor downstream of the particulate filter than at the NOx sensor at the silencer outlet.

Variant 1: NOx sensor, confused connections

Applies to: EMS10

What does Scania EMS fault code 4135 mean?

What causes Scania DTC 4135?

How to fix Scania EMS fault code 4135?

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Variant 2

Applies to: EMS S6

Variant 3: Implausible values from the NOx sensor

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 4135 in other Scania systems

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