Scania BMU DTC 4187 Propulsion battery positive contactor, number of permissible actuations exceeded

BMU Battery Management Unit · Scania

Code 4187 (decimal). Some diagnostic tools show it in hexadecimal as 00105B.

In short

The positive contactor has reached the maximum number of actuations permitted during its service life.

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 4187 mean?

What causes Scania DTC 4187?

How does the system react?

How to fix Scania BMU fault code 4187?

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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.

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