Front parking sensors wont work

[Limz]

Once I removed the front bumper, my front parking sensors experienced an unexpected malfunction. Initially, they resumed functioning briefly, only to cease operating once more. I conducted a car diagnosis yesterday, which revealed the following fault codes:

B1851 - Front Parking Sensor Communication Bus Error
B1860 - Front Left Parking Sensor
B1861 - Front Center Left Parking Sensor
B1862 - Front Center Right Parking Sensor

Have any of you guys experienced these fault codes, and know a solution to the problem?

[SAEED_KIZZY]

parking sensor in Kizashi uses a simple 3-wire interface
1:GND
2:VCC(8V)
3:DATA pin

remove the bumper and check VCC and GND with multimeter. Here is the wiring diagram to diagnose. check YEL/RED, GRN/RED, BLUE/RED wire.

[Limz]

parking sensor in Kizashi uses a simple 3-wire interface
1:GND
2:VCC(8V)
3:DATA pin

remove the bumper and check VCC and GND with multimeter. Here is the wiring diagram to diagnose. check YEL/RED, GRN/RED, BLUE/RED wire.

New Bitmap image.jpg

Thank you so much! Where did you find this wiring diagram?

[SAEED_KIZZY]

you can find it here
viewtopic.php?f=13&t=4786&start=10