BMU 838 Scania Fan for rechargeable energy storage system, overload

BMU Battery Management Unit · Scania · 2 variants

Code 838 (decimal). Some diagnostic tools show it in hexadecimal as 0346.

In short

Control unit RES indicates fault.

Variant 1

Applies to: BMU6 (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 838 mean?

What causes Scania DTC 838?

What are the symptoms?

How to fix Scania BMU fault code 838?

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Variant 2

Applies to: BMU5

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

Code 838 in other Scania systems

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