What is this for?

[Romtag]

The reverse light switch is used to trigger the parking sensors on, if the reverse lights are working ok this means the reverse switch is working.

Aaah yes the reverse parking sensor are fine, it's just the front ones.. to all extents the car doesn't see them.

I don't know anyone with PP locally so can't investigate further, other than checking the wiring loom.

There are some Forum members who have the Lexia equipment and may be able to help out. Please be aware that some of these members have 'gone quiet' do may not respond to a PM. Here is a link to the map;

https://www.frenchcarforum.co.uk/forum/ ... hp?t=56452

Ooh! Perfect have dropped someone local a message and will see what they say! Cheers for the heads up on that!