What does it mean to check the automotive parking sensors system?

The vehicle's radar system is faulty, causing the automotive parking sensors system to be unavailable for the following reasons:
The vehicle's automotive parking sensors auxiliary system has a front and rear radar scanning system. The front radar will be disabled during parking assistance. This control is realized through a black wire. This wire will be grounded when the system is working, with to disable the front radar.
However, if this wire is disconnected and the system cannot control the front radar, there will be a parking assist system failure, but the fault code cannot reflect this failure. Check the disconnection of this wire and connect it well.

Extended information:
Automated parking automotive parking sensors systems follow these five basic steps:
1. The driver drives the car to the front of the parking space, parks next to the car in front, and activates the automatic parking system.
2. The automatic parking system turns the wheels to the side of the road and cuts the car backward into the parking space at about 45°.
3. When the car enters the parking space, the automatic parking system will straighten the front wheels, and then continue to reverse.
4. When using the rear-view mirror to ensure a certain distance from the vehicle behind. The automatic parking system will turn the wheel from the side of the road, when the driver needs to park the car in the drive gear, and the automatic parking will turn the front end of the car into the parking space.
5. The driver needs to move the car back and forth in the parking space until the car stops in the proper position.