Not been on for a while as everything with my FL2 has been fine, well almost. A while back my PDC stopped working, Every time i start the car I get a continuous tone and the switch light flashes for a little while. This used to happen after me washing the car but would settle down and PDC would work happily again.

Anyway I set about replacing one of the sensors in the rear bumper. I tested each one but with no success. I'm assuming it is the rear as the long tone is the same tone for the rear when working? If I replaced all the sensors does the error need to be cancelled with ID'S etc? Or is it the fronts?

Any suggestions would be gratefully received.

Cheers, Phil 2010MY 2.2 e4 (gone but, not forgotten)
Audi TT Roadster 3.2 DSG
FFRR Westminster 4.4 TDV8 (L322)

If you plug it into SDD or similar it will tell you the fault/which sensor.
All the plugs associated with this system have water seals so sounds like you have a faulty seal which has failed and now the sensor has shorted/failed. MY15
Tyre Pressure Monitoring System (TPMS)
Surround Camera System
InControl Apps soon to be replaced with CarPlay (WIP)
Meridian Premium Surround Sound
Digital Audio Broadcast
Timed Climate
Cruise ECO Data
Follow Me Home Reverse
Extra Features Menu
Picture In Motion
4x4i screen (WIP)
Digital Broadcast TV
Meridian Rear Media with WIFI
Factory Powered Tailgate
Blind Spot Monitoring (BSM)
Reverse Cross Traffic Alert (RCTA)
Electrochromatic Wing Mirrors (WIP)

Thanks Stuart. Hmmm, looks like I'll have to source a SDD device, it's probably about time. 2010MY 2.2 e4 (gone but, not forgotten)
Audi TT Roadster 3.2 DSG
FFRR Westminster 4.4 TDV8 (L322)