Scania EMU DTC 4199 Refrigerant compressor E158, internal fault

EMU EMU control unit · Scania

Code 4199 (decimal). Some diagnostic tools show it in hexadecimal as 001067.

In short

The refrigeration compressor reports a higher rotational speed than expected.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4199 mean?

What causes Scania DTC 4199?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4199?

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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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