Thanks for the reply. Does that mean if none of them click they are all U/S? None of them respond when reversing at the moment, although we do get the beep on going into reverse. Is there a control module somewhere that might not be working?
My daughters 2002 1.0l K11 SE has parking sensors fitted. When the car is put in reverse, there is a beep, but the sensors do not activate. Any idea what I can do to fix this, where on the car should I check? Thanks