1983 Pontiac Firebird headlights won’t go up problem and fix.

Here I discover the problem with the headlights not popping up. I replaced the switch and both 6 way relays at the headlights. They still wouldn’t work. Turns out there is an isolation relay beside the battery and I opened it up and discover that it was internally rusted out. Cleaned the contacts a little and closed them the headlights then opened. This relay is bolo get sold and you can only find them used. These were used from 1982 until 1986. After that they went to a box on the firewall behind the engine.

[@BlueBaby-m6t]

You can easily wire them to the standard relays but it takes two standard 5 pin relays that can be wired together with pin 5. It is the same wiring factory on 86 corvette poppup lights with two relays just need to wire them together on firebird single relay wiring cut off then wire them. One relay comes on it throws other off. The two are wired backwards on up down and switch back and forward to reverse polarity. Some corvettes use 3 relays but 3rd is wired on pin 5 differently. You can also Google standard window relay wiring to understand two relay up down function.