Scania BMU DTC 3355 The 24 V power supply to the contactors is critically high

BMU Battery Management Unit · Scania

Code 3355 (decimal). Some diagnostic tools show it in hexadecimal as 000D1B.

In short

The measured voltage to the contactors is critically high.

Applies to: BMU7 (BMUA)BMU7 (BMUB)BMU7 (BMUC)BMU7 (BMUD)BMU7 (BMUE)BMU7 (BMUF)BMU7 (BMUG)BMU7 (BMUH)BMU7 (BMUI)BMU7 (BMUJ)BMU7 (BMUK)BMU7 (BMUL)BMU7 (BMUM)BMU7 (BMUN)BMU7 (BMUO)BMU7 (BMUP)

What does Scania BMU fault code 3355 mean?

What causes Scania DTC 3355?

How does the system react?

How to fix Scania BMU fault code 3355?

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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.