Scania BMU DTC 22789 Coolant pump, blocked

BMU Battery Management Unit · Scania

Code 22789 (decimal). Some diagnostic tools show it in hexadecimal as 005905.

In short

The coolant pump's internal control system indicates a blockage.

Applies to: BMU7 (BMUA)BMU7 (BMUB)BMU7 (BMUC)BMU7 (BMUD)BMU7 (BMUE)BMU7 (BMUF)BMU7 (BMUG)BMU7 (BMUH)BMU7 (BMUI)BMU7 (BMUJ)BMU7 (BMUK)BMU7 (BMUL)BMU7 (BMUM)BMU7 (BMUN)BMU7 (BMUO)BMU7 (BMUP)

What does Scania BMU fault code 22789 mean?

What causes Scania DTC 22789?

How does the system react?

How to fix Scania BMU fault code 22789?

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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.