Scania EMS DTC 4198 Charge air pressure sensor T122

EMS Engine Management System · Scania · 4 variants

Code 4198 (decimal). Some diagnostic tools show it in hexadecimal as 1066.

In short

The EMS control unit has detected that the value displayed by the atmospheric pressure sensor is too high compared with other atmospheric pressure sensors in the vehicle.

Variant 1: Atmospheric pressure sensor in EMS control unit, value too high

Applies to: EMS10

What does Scania EMS fault code 4198 mean?

What causes Scania DTC 4198?

What are the symptoms?

How to fix Scania EMS fault code 4198?

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Variant 2

Applies to: EMS S7

Variant 3

Applies to: EMS S8

Variant 4: Combined sensor T47

Applies to: EMS S8 (S8PDE)

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

Code 4198 in other Scania systems

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