ONE brake light does not work

Hey all, been troubleshooting my passenger side brake light and rear turn signal.

Driver side brake light and rear signal work


I do not have power at the passenger side brake light with brake applied.

I can hear the flasher going with turn signal applied to drivers side but not passenger.

I replaced the turn signal switch this morning since I was installing a new steering wheel, did not change anything.

Tomorrow I’m going to attempt to troubleshoot the flasher device. Any other advice? I guess if that has output voltage then next step is broken wire from under dash to back passenger taillight to look for?