Scania BMU DTC 561 CAN communication for RES-SUB-CAN missing

BMU Battery Management Unit · Scania · 2 variants

Code 561 (decimal). Some diagnostic tools show it in hexadecimal as 0231.

In short

Communication error. RES-SUB-CAN has an open circuit.

Variant 1

Applies to: BMU6 (RES)BMU6 (RESXA)BMU6 (RESXB)BMU6 (RESXC)BMU6 (RESXD)BMU6 (RESXE)BMU6 (RESXF)BMU6 (RESXG)BMU6 (RESXH)BMU6 (RESXI)BMU6 (RESXJ)BMU6 (RESXK)

What does Scania BMU fault code 561 mean?

What causes Scania DTC 561?

How does the system react?

What are the symptoms?

How to fix Scania BMU fault code 561?

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Variant 2: CAN communication for RES-CAN missing

Applies to: BMU5

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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