Scania BMU DTC 3103 Propulsion battery, cell monitoring failed

BMU Battery Management Unit · Scania

Code 3103 (decimal). Some diagnostic tools show it in hexadecimal as 000C1F.

In short

At least one battery module does not report enough valid temperature data.

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 3103 mean?

What causes Scania DTC 3103?

How does the system react?

How to fix Scania BMU fault code 3103?

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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.