Rear pdc sensors not working

[FLATSPOT]

Hi

I have a 2004 z4 the rear pdc sensors started working intermittently sometimes they would work other times I just get a solid beep I thought one of the sensors was playing up but when I checked them all
4 of them were clicking but I still thought one of the sensors must have a intermittent fault so I replaced all 4 sensors with new ones plugged every thing back in now I have got nothing no sound at all no
solid beep nothing I have since replaced the wiring loom behind the bumper and the pdc unit in the boot still nothing all 4 sensors in the bumper are clicking anybody got any ideas

thanks

 

[Raj_UK]

Hi I'm sure someone on here can help you. However a bit more of an intro and some pics would be nice!

 

[Terryvision]

Sounds like the main module is faulty but you have changed that! Maybe a trip to BMW or an Indy

Silly question have you looked at the fuse? Fuse No'8 behind the glove box!

 

[FLATSPOT]

Yeah checked the fuse its ok

 

[Terryvision]

Yeah checked the fuse its ok

Stealer or indy then