Scania COO DTC 591 Communication with the retarder

COO Coordinator · Scania

Code 591 (decimal). Some diagnostic tools show it in hexadecimal as 024F.

In short

The coordinator has identified divergent information from the GMS control unit, which controls the retarder.

Applies to: COO7

What does Scania COO fault code 591 mean?

What causes Scania DTC 591?

How does the system react?

How to fix Scania COO fault code 591?

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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.

Code 591 in other Scania systems

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