no tail lights 88 hardbody

[dat u racing]

cann't locate fuse? also no low beam, no power to sockets, only high beam on right side works ,power to center wire at socket

[dat u racing]

ok so i changed the turn signel switch and now everything seems to work except low besms?

[72240z]

High miles? Check the switch in the column?

[datzenmike]

I don't have diagrams for the D-21 but it likely has a relay like the 720. The headlights have power to both hi and low and the relay selects and applies ground to either hi or low beams to light them.

[72240z]

Ya I have the diagrams if needed. I mention the column switch because mine will go from low to high beams when I put my left blinker on. I read in forums it's common that the switch gets all worn and contacts cross. Just throwing it out there, relay sounds good too.