Hi my 55 plate rrs has developed the following symptom
the rear parking sensor is a continuous tone and the light on the p button on the console is flashing does this mean a faulty sensor and how do I test or find out which one of the four many thanks in advance pete "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

Yes it does.

Get someone with an iid. Code reader

It could also be a faulty sensor loom. The loom runs across the rear bumper clipped to the bumper cover and can chafe. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Ignition on but don't start car.

Put into reverse then put your ear to each of the sensors. Working ones will emit a ticking sound and the faulty one will be silent

I had the same and thought it was a faulty sensor but turned out to be broken loom behind bumper skin. Soldered and heat shrinked the repair and no more issue  TDV8 now with extra grin factor thanks to Alive Tunning: Gone but not forgotten

Also need park brake off so flat surface and chock wheel etc.

Not everyone has success with listening but you might in this case

Thanks all will check "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

Just checked one sensor is not clicking so must be that one thx all for your help very much appreciated cheers pete "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

you can get them on ebay for £10

still could be a wire if that doesn't fix it.

Thx Andy ordered a sensor so will see hopefully it will fix it

Can anyone see if there is a link on the how to page and post a link here as I cant seem to use the how to page it's just freezing and saying recover web page "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

Has anyone got a how to change the rear parking sensor thx "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

Sorted now thanks "Remember its easier to say sorry than it is to get permission " especially off the Mrs !!

You need to remove bumper skin, did you find the how to for that ?

Its worth checking the wiring first if you haven't already ordered a new sensor by swapping one of the working sensors into loom position of suspected faulty one to check if the fault moves or stays TDV8 now with extra grin factor thanks to Alive Tunning: Gone but not forgotten