Parking Sensors

[Barts024]

Sorry if it's been posted elsewhere but had a couple of my rear sensors fail on me recently, 2 are ticking and the other 2 are dead, swapped them all about see if it was wiring or sensors but same results where ever good sensors were put. The car 03 type s had a bosch park pilot fitted from new so instead of forking out for a new complete kit is there anywhere about to get individual sensors at all?

 

[Salim]

have you put the system into diagnostic mode by removing the resistor?

 

[Barts024]

Haven't tried anything else other than try and clean the sensors and check for places water could have gotten into, first one that didn't work has a crack in it and the 2nd one has a rubber insert on one of the sides that has split. So only ***uming water has gotten into them and finished them off.
What are the other ways for checking the system? How do you do the system diagnostic mode?

 

[Salim]

Park pilot is aftermarket fit by dealers. They usually put the console behind right side boot trim. Amongst those wires you will see a fuse connector and another which looks like a blade type fuse but is actually a resistor. You need to remove this then put it in reverse. It puts the unit into diagnostic mode and checks each sensor one by one.