Scania BMU DTC 12478 Diagnostic framework test monitor, always disabled

BMU Battery Management Unit · Scania

Code 12478 (decimal). Some diagnostic tools show it in hexadecimal as 0030BE.

In short

NA

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 12478 mean?

What causes Scania DTC 12478?

How does the system react?

What are the symptoms?

How to fix Scania BMU fault code 12478?

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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.