Scania BMU DTC 3043 Negative contactor, closed incorrectly

BMU Battery Management Unit · Scania

Code 3043 (decimal). Some diagnostic tools show it in hexadecimal as 000BE3.

In short

The contactor to the negative terminal of the propulsion battery is incorrectly closed.

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 3043 mean?

What causes Scania DTC 3043?

How does the system react?

How to fix Scania BMU fault code 3043?

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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 3043 in other Scania systems