Scania BMU DTC 1401 Coolant pump (M86), circulation fault

BMU Battery Management Unit · Scania

Code 1401 (decimal). Some diagnostic tools show it in hexadecimal as 0579.

In short

The coolant pump has identified one of the following faults and sent a message to the control unit about it: - Dry running of the coolant pump - The coolant pump doesn't rotate.

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 1401 mean?

What causes Scania DTC 1401?

How does the system react?

What are the symptoms?

How to fix Scania BMU fault code 1401?

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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.