Reverse Parking sensors troubles

Hi guys.

I spent all day today re-wiring my reverse parking sensors. Did a cracking job and they were working perfect. However, everytime i go to put the rear bumper back on they stop working? When i take it off again they work! That means that no wires came out when i put the bumper back on. They might be getting squashed but that should still be ok providing they are still all connected.

I am stumped as to why they wont work. Please help!!

What car and are they aftermarket or original equipment ????

My Crystal Ball is a bit foggy at the moment !!!

Irishrover said:

What car and are they aftermarket or original equipment ????

My Crystal Ball is a bit foggy at the moment !!!

Click to expand...

Your crystal ball isn't made my LR is it? That might explain why it's a bit foggy

Its an L322 and yes they are original.

Wire(s) broken internally and connecting when off the car. But being flexed when refitted, thus breaking the connection?

Why did they need re-wiring?

Pete

Pete The Biker said:

Wire(s) broken internally and connecting when off the car. But being flexed when refitted, thus breaking the connection?

Why did they need re-wiring?

Pete

Click to expand...

Well i thought there was an internal break in the wires so i replaced all the wires that was accessable once the rear bumper was off. If there is a break in the wires that run inside the car then 1, i have no idea where to get to them and 2, why would they be moving when move the rear bumper? It would be nowhere near it and firmly fixed inside the car somewhere?

Very confusing.

I'm a P38 driver so don't know about these modern cars but -
Some reverse sensors don't work when too close to a steel bumper. The bumper connected to the car gives a false ground effect. To get round this with after-market sensors the trick is to isolate the bumper from the car, normally with nylon washers.