Scania EMD DTC 6559 Coolant pump M4005, incorrect speed

EMD EMD control unit · Scania

Code 6559 (decimal). Some diagnostic tools show it in hexadecimal as 199F.

In short

The measured speed does not match the speed requested by the control unit.

Applies to: EMD1

What does Scania EMD fault code 6559 mean?

What causes Scania DTC 6559?

How does the system react?

What are the symptoms?

How to fix Scania EMD fault code 6559?

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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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