EMU 4201 Scania EVCB2 VCB Refrigerant Compressor B has raised internal fault "Over Voltage".

EMU EMU control unit · Scania

Code 4201 (decimal). Some diagnostic tools show it in hexadecimal as 001069.

In short

EVCB2 VCB Refrigerant Compressor B communicates the fault when the VCB voltage exceeds 850 V for 2 seconds.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4201 mean?

What causes Scania DTC 4201?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4201?

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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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