Hi, I have a problem with my 2011 X5 front parking sensors. I have used an OBD reader to check the failure codes and it appears all 4 front sensors have a ground or open circuit fault. I have checked the wiring harness for the front sensors and the main plug behind the bumper and all seem fine with no damage. I assume this must be the PDC module as it’s all the front not the odd sensor. But I cannot find it anywhere. can any one help please?