Scania BMU DTC 3154 Positive contactor, stuck in closed position

BMU Battery Management Unit · Scania

Code 3154 (decimal). Some diagnostic tools show it in hexadecimal as 000C52.

In short

The control unit has interpreted that the contactor is stuck in the closed position when the open position has been requested.

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 3154 mean?

What causes Scania DTC 3154?

How does the system react?

How to fix Scania BMU fault code 3154?

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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 3154 in other Scania systems