Scania BMU DTC 3101 Propulsion battery, thermal runaway or short circuit in battery cell

BMU Battery Management Unit · Scania

Code 3101 (decimal). Some diagnostic tools show it in hexadecimal as 000C1D.

In short

The temperature is increasing sharply in a battery module or one or more battery cells are losing voltage quickly.

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 3101 mean?

What causes Scania DTC 3101?

How does the system react?

How to fix Scania BMU fault code 3101?

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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.

Code 3101 in other Scania systems