Scania BMU DTC 3338 The pyro fuse has tripped, the positive and negative contactors cannot open

BMU Battery Management Unit · Scania

Code 3338 (decimal). Some diagnostic tools show it in hexadecimal as 000D0A.

In short

The positive and negative contactors are stuck in the closed position.

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 3338 mean?

What causes Scania DTC 3338?

How does the system react?

What are the symptoms?

How to fix Scania BMU fault code 3338?

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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.