does the WUR have a relay ?
 

if so where ?

is there a wiring diagram anywhere to be found ?

According to the (more or less) useful Haynes.. the WUR (N9) has a relay (J15).. on what it looks like connections 30, 87, 85 and 86...

a Red/White cable goes out from the WUR into the 14 Pin connector.. a red/white cable from the connector goes into pin 87 to the relay

Sorry but I don't have a scanner or electronic copies of the diagrams... Hope this helps a little bit

One more thing... if you look at the second picture on this thread --> http://forums.pelicanparts.com/porsche-911-technical-forum/74392-what-these-two-parts.html

I think that the black relay (under the circled 1) is the WUR relay.. not very sure..

Thanks for that.

Infact one of these relay is suspect because the plastic cap keeps comming off I think its broken.

Is this an allpurpose relay or does it have a part number ?