Scania DCU DTC 522 Communication, brown CAN bus (CAN1)

DCU DCU control unit · Scania

Code 522 (decimal). Some diagnostic tools show it in hexadecimal as 020A.

In short

No communication on the brown CAN bus.

Applies to: DCU3 (DCUA)DCU3 (DCUF)DCU3 (DCUM)DCU3 (DCUR)

What does Scania DCU fault code 522 mean?

What causes Scania DTC 522?

How does the system react?

What are the symptoms?

How to fix Scania DCU fault code 522?

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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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