Right gents here is what I have neither front nor back working flashing light on button so 11d tool and switch off front which gives rears working fine so switch back on and live data shows all are working ( I assume this is that voltage is getting to all?)
Click test shows front centre left is not working and have fault code 0x0007 so am I safe in thinking that it is only that sensor and as I will have the bumper off is it worth replacing them all?
Ta

I had 2 front sensors and one at the back not working.

replaced all 3 but rear sensor still out. Wiring/loom issue which I will need to get someone to look at.

might be worth testing it with another sensor to see if works before buying new as could be wire.