Scania EMU DTC 8473 Coolant pump M523, temperature too high

EMU EMU control unit · Scania

Code 8473 (decimal). Some diagnostic tools show it in hexadecimal as 002119.

In short

The coolant pump detects an internal temperature that is too high and is overheated.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8473 mean?

What causes Scania DTC 8473?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8473?

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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.