Scania BMU DTC 4108 Cell monitoring circuit board, communication fault

BMU Battery Management Unit · Scania

Code 4108 (decimal). Some diagnostic tools show it in hexadecimal as 00100C.

In short

Fault in communication between the BMU control unit and cell monitoring circuit boards.

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 4108 mean?

What causes Scania DTC 4108?

How does the system react?

How to fix Scania BMU fault code 4108?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

  • Full explanations of every code and brand
  • Causes, symptoms and repair steps
  • New brands and codes included

Yearly plan: pay 10 months, get 12. Cancel at any time.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 4108 in other Scania systems

Compare code 4108 in every system →