RAD4Runner

It's hard to visualize what you're doing so please be specific. What connector and pin number to what connector and pin number.

You mean with door open D12 has 12V and D10 has zero volt? Negative side of test probe on chassis ground?

We're heading in the right direction but just need to triple-check because no one who owns a 91 has chimed in regarding schematic and options.

If answer to my question above is "yes", and you're looking at connectors C and D exactly same as on Scope103's schematic, Then correct; Like Scope103 suggests above^^, Jump D10 to D12 and you're done. No need for integration relay.

Gamefreakgc

Yes, that's what I meant. Brain's not all there, been so busy

RAD4Runner

Cool, Man. Problem solved! Who needs an integration relay. Just wire it cleanly and document it, so future owners if any would not be cursing you like we do P.O's how butcher wiring - LOL! For light reminder relay, check out my simple, sub-20$ solution.

Gamefreakgc

Been super busy and sick over the last few days and haven't been able to fix it. Tonight had some time. Here's the update:

I ended up going to the junkyard for some other parts and found a 4Runner with an integration relay still on the fuse block. It was part number "82641‑89102 (with a big printed "2") RN101, 110, 13*, VZN100, 110, 13*..SR5, ILLUMINATION PACKAGE" but for $10, figured it was worth a shot.

Popped it in tonight and voila! It works! I suppose I must have had the illumination package anyway. I also fixed my "Light Rheostat" (dimmer switch) and some odds and ends.

Thanks for all the help with the wiring, it helped narrow down the issue a LOT. Learned a bunch about electrical too . I think the wiring bit might have worked as well, but for $10 bucks I couldn't pass up the chance to get the missing part.