My reverse parking aid does not work. I put it in R and listened to all the sensors and the one on the far right does not work. The wire is disconnected. But it does not wanna go in all the way, when I try to put it in all the way it just pushes out. I was holding it when plugged and had a friend put it in R and it would click. Why isn't it going in all the way?

 

Can you post a picture of both connector (inside) and the back of the sensor?
Does it look like it should physically fit?
Have you swapped it for it's neighbor?

 

I will post a picture tomorrow. The end of the sensor is identical to the connector. It fits in but does not snap. If I hold it, it will work. But when I let go it does not any more.