Parking sensors

[IMAY2023]

Please help!
I finally almost gave up...
Disconnect all sensors from the harness, buy new Volvo pins and connectors to connect directly to the CEM. without having options for error.
I still have the same errors and on the same sensors, in fact I managed to see the right sensor act for a second.
I also tried with original Volvo front sensors and I get the same error.

Do you have any more ideas?
I'm going CRAZY!
I attach images.

I don't see clearly in the picture where the (+) Pin1 of sensor and (-) pin3 of the sensor are connected.  Since you connected 4 sensors, look at the enclosed picture for pin # on the cem connector. The highlighted one (44) is the positive goes to PIN 1 of the sensor.  
After making sure that pins are correct;  Try to switch the polarity (pin1 to PIN3) of the other sensors connected to PINs (38, 39 and 40)  According to the DTCs, only PIN 41 is working. 
You can also move the sensor connected to PIN41, to other pins.  But just the middle PIN2 of the sensor.