Scania EMU DTC 4174 Heater H39, internal fault

EMU EMU control unit · Scania

Code 4174 (decimal). Some diagnostic tools show it in hexadecimal as 00104E.

In short

Heater H39 has detected an internal fault.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4174 mean?

What causes Scania DTC 4174?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4174?

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

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