Scania EMU DTC 20550 Vehicle charging inlet box R130, UI sensor, internal fault

EMU EMU control unit · Scania

Code 20550 (decimal). Some diagnostic tools show it in hexadecimal as 005046.

In short

The UI sensor has reported an internal fault to the control unit.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 20550 mean?

What causes Scania DTC 20550?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 20550?

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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.