Scania BMU DTC 891 Battery module 8 in propulsion battery, implausible temperature

BMU Battery Management Unit · Scania

Code 891 (decimal). Some diagnostic tools show it in hexadecimal as 037B.

In short

The temperature monitoring in the propulsion battery is outside the measurement range.

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 891 mean?

What causes Scania DTC 891?

How does the system react?

How to fix Scania BMU fault code 891?

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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 891 in other Scania systems