Scania COO DTC 21249 Communication with the main coordinator

COO Coordinator · Scania

Code 21249 (decimal). Some diagnostic tools show it in hexadecimal as 5301.

In short

Communication with the main coordinator has been interrupted.

Applies to: COO4 IMCOO4 IM (Slave)

What does Scania COO fault code 21249 mean?

What causes Scania DTC 21249?

How does the system react?

How to fix Scania COO fault code 21249?

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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.