All bulbs working. Failure light on when low beam mains are on. Off at all other times including when high beams are on.

What I have done to date.
1. Read every posting I can find on the brickboard
2. Replaced all four headlights with new bulbs.
3. Replaced all tail light and running light bulbs.
4. Cleaned every bulb connector on bulb and bulb holders. Sanded until shiny with emery cloth. Cleaned every ground connector I could find in front and rear.
5. Swapped out bulb failure relay twice with two p&p relays ($4.95 each).

Bulb failure relay is still on!!!! Looking for any advice before I start r&r ing every bulb again.

What I haven't done

Replaced front headlamp harnesses. I could not get them off donor cars at p&p without cutting the harness end of the connector. There must be a way that the connector goes through the lamp bucket but I could not figure it out.

Also why does the front turn running light socket want a dual filament bulb when there is only off and on? The socket will only accept a dual filament bulb similar to the Tail/brake lamp.

I have run out of ideas. Any help would be appreciated.

Howard
1985 245 NA