Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
B1405 02
Parking Assist Sensors Reference Voltage = Short to Ground
B1405 03
Parking Assist Sensors Reference Voltage = Low Voltage
B1405 07
Parking Assist Sensors Reference Voltage = Short to Voltage