Scania EMU DTC 20563 Contactor unit R126, positive contactor, fault in the ECU control unit

EMU EMU control unit · Scania

Code 20563 (decimal). Some diagnostic tools show it in hexadecimal as 005053.

In short

The control unit indicates a hardware fault.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 20563 mean?

What causes Scania DTC 20563?

How does the system react?

How to fix Scania EMU fault code 20563?

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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.