Woke up yesterday and the 12V accessories battery was dead dead.
So I disabled the High Voltage system and removed the old 12V battery.
Measured below 10V.
Figured it's an old battery and needed replacing, so took a trip to my local BMW dealer and picked up a new OEM replacement battery.
Installed the new battery, then I reconnected the High Voltage system.
Everything came back to life. Yay!
I can do everything EXCEPT drive. Check engine light is on and it's showing a Drive Train fault detected message.
Won't let me put the vehicle into gear.
Ordered myself an ODM tool so I can use BImmercode to check the codes. It arrives tomorrow.
In the mean time, just curious if anyone has any thoughts on additional troubleshooting I could try?
Thanks in advance!