My 2000 s80 is doing the typical failed antenna ring symptoms. I was able to get it to crank by shorting to ground the starter relay pin #85 while turning the key and bypassing the immobilizer(of course it didn't start because the injectors wouldn't fire). I pulled the antenna ring and swapped it with the one in my xc90 and the xc fired up just fine with what I expected to be the faulty ring. I put the antenna ring of the xc in the s80 and nothing. The radio, all the lights and accessories work. I tried shifting it into all gears thinking it was the PNP switch and that did nothing. Not sure what it could be.

 

The antenna ring is getting power despite what my thread title says