Scania EMD DTC 278 Coolant temperature sensor T33

EMD EMD control unit · Scania

Code 278 (decimal). Some diagnostic tools show it in hexadecimal as 0116.

In short

Coolant temperature sensor fault.

Applies to: EMD0EMD1

What does Scania EMD fault code 278 mean?

Coolant temperature sensor fault.

What causes Scania DTC 278?

Fault in the coolant temperature sensor, its harness-to-component connectors or cable harness.

How does the system react?

The engine power is reduced. The fault code cannot be cleared when it is active.

How to fix Scania EMD fault code 278?

Check the circuit components, harness-to-component connectors and electrical cables.

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

Code 278 in other Scania systems

Compare code 278 in every system →