What do these diodes control on my 86 gl-10

[winterbottom321]

I've been trying to track down why my headlights don't work, checked the relays under the dash, bulbs, both fuses, bulb connectors, and now I'm looking at these black diodes that are in a cluster on a pcb and hook into a plug on my fuse box. I have the gl-10 with the trip computer. I noticed some major corrosion that had caused the traces on that pcb to disintegrate. I have no trip computer now. Would this be the problem with my headlights too that these diodes are toast or would my 2 year old jumping in the drivers seat and jamming the blinker/hi/low control in every which way have busted something that would keep neither high or low beams to come on? And what are all those diodes controlling attached to the fuse panel?

 

I went to find the diode assembly on a loyale but it wasn't there, though the car was picked over, I'm pretty certain it has something to do with all my electronic digital dash stuff.

 

Any help would be great.

 

86 gl-10 turbo 4x4 auto

[Turbone]

I doubt the diodes have anything to do with the lights, most likely for the digi dash.

And like you said, jamming the switch getting in and out might have buggered something in it.

[winterbottom321]

Fixed the lights. One of the main fuses under the hood had started to come out of it's crimped connector.

 

So just to check, regular gl's/ loyales don't have a diode assembly that is capped with a blue plug down by the fuse box? How bout anyone with a green digital dash? Mine is the orange style. I'm just wanting to nail down for sure which cars I can find one in when I go to the yard.

 

Weird thing is every thing is working right now with that thing unplugged. I guess I'm not a 100 percent sure on that because my air suspension I'm running manually with schrader valves for adjustment.