Scania EMS DTC 149 Charge air temperature sensor T121

EMS Engine Management System · Scania · 2 variants

Code 149 (decimal). Some diagnostic tools show it in hexadecimal as 0095.

In short

The charge air temperature sensor reading is constant despite varying operating conditions.

Variant 1

Applies to: EMS S7

What does Scania EMS fault code 149 mean?

What causes Scania DTC 149?

How does the system react?

How to fix Scania EMS fault code 149?

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Variant 2

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 149 in other Scania systems

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