Scania BMU DTC 834 The wear counter for the contactor unit, implausibly high

BMU Battery Management Unit · Scania

Code 834 (decimal). Some diagnostic tools show it in hexadecimal as 0342.

In short

Loss of voltage supply to the IBU unit when the electric drive system is active sets the contactor unit wear counter to maximum value.

Applies to: BMU5BMU6 (RES)BMU6 (RESXA)BMU6 (RESXB)BMU6 (RESXC)BMU6 (RESXD)BMU6 (RESXE)BMU6 (RESXF)BMU6 (RESXG)BMU6 (RESXH)BMU6 (RESXI)BMU6 (RESXJ)BMU6 (RESXK)

What does Scania BMU fault code 834 mean?

What causes Scania DTC 834?

How does the system react?

How to fix Scania BMU fault code 834?

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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 834 in other Scania systems

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