Scania EMU DTC 4181 Refrigerant compressor E158, internal fault

EMU EMU control unit · Scania

Code 4181 (decimal). Some diagnostic tools show it in hexadecimal as 001055.

In short

The refrigeration compressor reports unbalanced currents.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4181 mean?

What causes Scania DTC 4181?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4181?

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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.

Code 4181 in other Scania systems