Scania BMU DTC 1403 Coolant pump (M38/M83), the temperature in the propulsion battery cooling circuit is too low

BMU Battery Management Unit · Scania

Code 1403 (decimal). Some diagnostic tools show it in hexadecimal as 057B.

In short

The coolant pump has identified that the temperature is too low and sent a message to the control unit about this.

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 1403 mean?

What causes Scania DTC 1403?

How does the system react?

What are the symptoms?

How to fix Scania BMU fault code 1403?

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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.