Scania EMS DTC 277 Coolant temperature sensor T33

EMS Engine Management System · Scania · 4 variants

Code 277 (decimal). Some diagnostic tools show it in hexadecimal as 0115.

In short

The coolant temperature sensor value has not varied enough with increased engine load.

Variant 1: Coolant temperature sensor, fixed value

Applies to: EMS10

What does Scania EMS fault code 277 mean?

What are the symptoms?

How to fix Scania EMS fault code 277?

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Variant 2

Applies to: EMS S7

Variant 3

Applies to: EMS S8

Variant 4

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 277 in other Scania systems

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