If any of the sensors were bad it would’ve flagged upI don't know but would a VCDS scan at least tell you which sensor is bad.
Andy
I’m not sure if both reverse lights are working, I’ll check in the morrow, could this make a difference?Saying the power has been shorted out to earth. You will have to trace the power supply from source to the pdc for damaged wiring or corroded / burnt terminals. Out of curiosity are both your reversing lights working correctly?
You’re a star. Thanks manTrying to find the wiring diagram for the PDC, not found it yet. If the power is taken from the same line that feeds the reversing lights, then it is possible that a bulb issue may affect the PDC system, not sure until I locate the wiring diagram.