Scania EMU DTC 4248 Contactor unit R126, positive contactor, voltage class B to bodywork outside range

EMU EMU control unit · Scania

Code 4248 (decimal). Some diagnostic tools show it in hexadecimal as 001098.

In short

The UI sensor reports voltage outside the approved range.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 4248 mean?

What causes Scania DTC 4248?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 4248?

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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 4248 in other Scania systems