Scania COO DTC 30 Communication with the retarder

COO Coordinator · Scania

Code 30 (decimal). Some diagnostic tools show it in hexadecimal as 001E.

In short

The communication between the coordinator and the retarder, which is controlled by the GMS control unit, has been interrupted.

Applies to: COO6 (COO6C)

What does Scania COO fault code 30 mean?

What causes Scania DTC 30?

How does the system react?

How to fix Scania COO fault code 30?

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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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