July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
DTC Detection Logic
WARNING: This page is about a different car, the 2020 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
DTC
Trouble diagnosis name
DTC detecting condition
C1B20
CONTROL MODULE
(Control module)
If driver assistance buzzer control module is malfunctioning