Passenger fog light is out - no voltage at fuse

[Das Delfin]

Hi guys, so my passenger side fog light is out. The bulb is good, connector is good, fuse is good, and there is no power at the socket for fuse 30. Fuse 29 has battery voltage and the drivers side light works, so my K8 relay is good. The ETM shows K8 feeding fuse 29 and 30 equally. I'm suspecting a solder trace inside the fuse box is corroded. Anyone have this problem?

My car is an 87 325i

[Das Delfin]

I figured out after ripping apart a spare fuse box this was a bad connection at the fog light. Nice