Applies to: MGU3 (MGUA3)
What does Scania MGU fault code 2321930 mean?
The control unit interprets an unreasonable value.
What causes Scania DTC 2321930?
Internal hardware fault.
How does the system react?
A yellow warning indication is displayed.
What are the symptoms?
- Electric propulsion is not possible. - May activate other fault codes in systems connected to voltage class B.
How to fix Scania MGU fault code 2321930?
- Restart the vehicle in the following sequence:
- Turn off the 15 voltage with the starter key.
- Wait for at least 20 seconds.
- Turn off the 30 voltage with the battery master switch.
- Wait for at least 20 seconds.
- Turn on the 30 voltage with the battery master switch.
- Turn on the 15 voltage with the starter key.
- Check for any available software update if the fault code reoccurs.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.