Rear parking sensors

[Jeff6917]

I have a 2017 ram 3500 that I replaced the rear bumper on purchased from Amazon. Said it was an exact fit which it is not.

I had to splice in a foot to two of the rear parking sensors I checked continuity to each plug and both were good. However when I put the truck in reverse I get an alarm that sensors are failing. I am also getting false readings that the sensors are blocked but there are no obstructions behind the truck.

I’m not sure if I’m posting in the correct thread but if anyone has any insight on this problem input would be appreciated.

Thank you,

Jeff

 

[Dean2]

Adding more wire to the harness can result in enough resistance to create a false positive that the sensor is reading an obstruction, blockage reading as well as sensor failing readings.

Read this Thread. It has a lot of info and a couple of other threads on measuring resistance etc.

Front parking sensors- Directional?

Question for the experts. I have a bull bar on the front of my 18 PW, and when I installed it, it came with these offsets to relocate my front parking sensors so the bull bar didn't set them off. The sensors location is now roughly 1/3 of the way into the hood, all the way to about 1/4" behind...

www.ramforum.com

 

[Jeff6917]

This is what I get on the dash.

 

[Dean2]

This is what they should look like. There are only 4 on my 2021 2500 rear bumper too.

Right side near plate




Far right