Parking Sensor Display

[gazz292]

Am in the same boat. Same display, neither sensor shows up.
I've got an android app hooked up to an arduino sketch that gives a visual display. All the info is on the gmlan apparently, but the instrument panel display doesn't make use of it.

Any chance of more info on the arduino sketch and what else you use... i presume a canbus shield etc? 

i want to make my tailgate open via the remote (my car is a meriva B, electric tailgate release, but only via the switch in the tailgate, not from the remote) 
So i figured i'd use an arduino and canbus shield and listen in on the gmlan on pin 1 of the obdii port, when it recieves the unlock signal from the remote, it will trigger a timer, if the unlock code is recieved a second time within say 1.5 seconds, it will trigger a relay for a second or 2.. that will operate the tailgate release.

I have a tiny bit of experience with arduino sketches, but have never played with reading canbus signals... 

is the unlock signal even registered on the gmlan... is it on the main higher speed 2 wire lans.. i mean the actual 'recieved a valid unlock command from the remote' rather than the central locking unlock signal... this is to ensure the tailgate only releases from 2 presses of the remote and not the dashboad all doors unlock button (this car having rear suicide doors also does lots of locking and unlocking of doors when ever you stop and set off again, so worried that might trigger the boot to pop at times)