How to wire car reversing radar?
Wiring method of car reversing radar:
1. Most of the astern radars are 4 probes, that is, four astern radar cameras installed on the rear bumper of the car. When wiring can see black, red, orange, white four color lines;
2. When wiring, it must be installed to the correct position one by one. Black is the ground wire, also known as the wire, as the name suggests the need for direct contact with the body;
3. To connect the red to the reversing light film, you can directly connect it to the reversing light in accordance with the principle of proximity, the orange wire needs to be connected to the brake light power supply, and the white wire needs to be connected to the ACC power supply;
4, in the wiring must be careful and careful, to avoid because the four-color line is connected incorrectly, not only will lead to the reverse radar can not work properly, but also serious will burn the electronic components in the car.
How to detect the back-up radar circuit?
Three key aspects are examined
The first is whether the host power cable connection is normal, there is no loosening phenomenon, and the fuse is not burned
The second is whether the buzzer on the radar is damaged
The third is that the radar camera is not damaged, one by one to find out the cause of the problem.
Host power cord
In the vehicle power state, you can use a pen to detect the radar host power cord, test and check whether there is current through, the vast majority of power cords are generally hidden in the car structure, rarely damage, this time should focus on checking whether the line is normally connected, there are no signs of loosening, if the power cord is damaged, it needs to be replaced.
buzzer
Reversing radar key rely on the buzzer to play a reminder role, if the reversing image can be used normally, but the reversing radar does not make a sound, it can be determined that the buzzer is damaged, the buzzer can be purchased separately to replace, if the replacement buzzer is still not ringing, you need to check the radar line is normal.
Radar camera
The radar camera is fixed on the outside of the car body, the wind and sun will inevitably have loss, if the reversing buzzer sounds normally, but the reversing image can not be displayed, it may be the camera is damaged, you can try to clean the external camera, if still can not show the reversing impact, it needs to be replaced.
The current of the reversing radar harness is usually around 1-2 amps . This is because the ACC power supply of the safety reversing image is very small, and the general working current is about 1-2 amps. As a driving assistance system, the reverse radar system is designed and operated to ensure driving safety, so its current requirements are relatively low to avoid placing an excessive burden on the vehicle's electrical system .
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