Scania BMU DTC 803 The propulsion battery level monitor T181 indicates a low fluid level.

BMU Battery Management Unit · Scania · 2 variants

Code 803 (decimal). Some diagnostic tools show it in hexadecimal as 0323.

In short

Low coolant level in the propulsion battery cooling system.

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 803 mean?

What causes Scania DTC 803?

How does the system react?

How to fix Scania BMU fault code 803?

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Variant 2: The propulsion battery level monitor indicates low coolant level

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 803 in other Scania systems

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