Scania EMU DTC 8458 Coolant pump M524, internal short circuit

EMU EMU control unit · Scania

Code 8458 (decimal). Some diagnostic tools show it in hexadecimal as 00210A.

In short

The coolant pump detects an internal short circuit.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8458 mean?

What causes Scania DTC 8458?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8458?

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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.