Front Parking Sensor Operation

[JonRS4]

I have a North America spec'd B8 S4 with Nav. I have just installed the OEM front parking sensor modules that I sourced from Kufatec. The coding has been updated to accept the sensors. They are now functional but my question is in the operation. When the Parking sensor button is depressed, car in a forward gear, what display do you see on the MMI screen? I am getting no parking related display at all. In addition, the LED on the sensor button does not light up when pressed but does light when headlamps turned on. Obviously that can't be normal TIA

[JonRS4]

UPDATE: Problem sorted out, it was a coding problem in the Backup Camera module, address 6C. Got in there with my VAG-COM and made the switch. Proper code was 1020006.