Scania BMU DTC 3346 UI sensor, invalid value for temperature

BMU Battery Management Unit · Scania

Code 3346 (decimal). Some diagnostic tools show it in hexadecimal as 000D12.

In short

The lower or upper temperature limit for the UI sensor has been exceeded.

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 3346 mean?

What causes Scania DTC 3346?

How does the system react?

How to fix Scania BMU fault code 3346?

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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.