Check the label sticker of the canbus, and confirm the brand of the canbus
【1】Hiworld【2】OD/Oudi【3】RZC/Raise【4】Lz(Hz)/Luzheng【5】XP/XINPU/Simple soft【6】BNR/binarui【7】daojun/Dogen-Electronics【8】XBS/xinbasi

Settings - Vehicle - Vehicle canbus - Car Model Selection
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The protocol does not communicate (such as SWC, door information, dynamic trajectory, etc. do not work), check whether the protocol serial port in area C of the host is connected correctly with the protocol box.

Some functions can not work, such as
- the canbus works, but the car steering control does not work (the car steering control pin connector may be inserted crookedly or fall off)
- the canbus is working, but the canbus line pin connector is not working (the canbus line pin connector may be inserted crooked or fall off)

