jblueridge
SILVER Star
I'm trying to understand my fog light electrical system and get them working.
Maybe someone else has these old PIAA 8 inch lights.
In the dash is a primitive toggle switch that has three positions.
One position is Off.
The second causes the fog lights to operate with the parking lights but turns them off if the headlights are turned on.
I believe the third position would allow the fog lights and headlights to be on at the same time. When I first got the truck that was the case. Now the third position does nothing at all.
Here's a diagram of the wires that go into the switch and how they behaved when I put a multimeter on them.
At the front of the truck there are a lot of black and black/white wires that go into a white plastic box.
There's no obvious way to get the box open; I haven't tried to break into yet.
Here's a shot of the box. I guess it holds a relay or two?
Anyone who has info or who can explain how this stuff work, I'd appreciate your comments.
Thanks.
Maybe someone else has these old PIAA 8 inch lights.
In the dash is a primitive toggle switch that has three positions.
One position is Off.
The second causes the fog lights to operate with the parking lights but turns them off if the headlights are turned on.
I believe the third position would allow the fog lights and headlights to be on at the same time. When I first got the truck that was the case. Now the third position does nothing at all.
Here's a diagram of the wires that go into the switch and how they behaved when I put a multimeter on them.
At the front of the truck there are a lot of black and black/white wires that go into a white plastic box.
There's no obvious way to get the box open; I haven't tried to break into yet.
Here's a shot of the box. I guess it holds a relay or two?
Anyone who has info or who can explain how this stuff work, I'd appreciate your comments.
Thanks.
