Scania EMU DTC 8451 Coolant pump M524, control signal: Open circuit

EMU EMU control unit · Scania

Code 8451 (decimal). Some diagnostic tools show it in hexadecimal as 002103.

In short

The control unit reports an open circuit.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8451 mean?

What causes Scania DTC 8451?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8451?

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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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