Scania EMU DTC 8456 Coolant pump M524, supply voltage too low

EMU EMU control unit · Scania

Code 8456 (decimal). Some diagnostic tools show it in hexadecimal as 002108.

In short

Coolant pump detects a supply voltage that is too low

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8456 mean?

What causes Scania DTC 8456?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8456?

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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.