Parkingsense parking sensors error

[Syr4RinNC]

So I tried to do a search and hoping someone has advice or can point me in the right direction
I’m getting the message my front parking sensors need to be serviced. I used an obdii to see if I could get more info and I’m getting

B1291 sensor 4 circuit short to ground
B1291 sensor 4 performance or incorrect operation

if tried to clean them out best I can. Does the sensor need to be replaced or is there other trouble shooting I can do?

 

[Leviathon133]

I'm having this exact same problem and it ended up being covered my extended warranty. The harness had a short in it and had to be replaced.