I don't know, but AI says:
This error (OBC-P0D6749) means that the charging system is unable to charge the hybrid battery of the car. This may be due to several reasons, such as:
Poor connection between the charging device and the car
Damaged charging cable or connector
Malfunctioning hybrid battery
Damage to electrical components of the charging system, such as relays or sensors
Here are a few steps that can be taken to resolve this issue:
Check if the charging cable and connector are properly connected to the car.
Check the charging cable for any damage or wear and tear.
Make sure that the charging device is working properly and has the correct settings for your car.
Check the hybrid battery for any damage or malfunctions.
If the problem is not resolved, contact a Volvo dealer for diagnosis and repair of the car.
I hope these tips will help you resolve the issue with the electronics of your Volvo V60 car.