Normally the fog lamp switch (illuminated) has 3 leads: power, accessory, and ground.
[b]Power[/b] is connected to existing power when ignition is "on" or "accessory"
[b]Accessory[/b] goes to the relay (86)
[b]Ground[/b]... goes to a ground.
A non-illuminated switch won't have a ground.
The relay consists of:
(86) - switch
(85) - ground to chassis
(30) - main power to battery (15 or 20 amp fused)
(87) (one or 2) - power to lamps
Hope that helps.
The 1987 Nissan Pathfinder wiring diagram can be obtained from most Nissan dealerships. The wiring diagram can also be found at most auto-parts stores.
You can find a wiring diagram for your 1984 Nissan at most Nissan dealerships. The wiring diagram is in Nissan service manuals. The service manuals can be found at most local libraries.
I get my wiring diagrams from the local public library. They have the complete Mitchell manuals. The manuals also contain essetially complete shop manuals for nearly every car and truck.
Ignition wiring diagram
The Nissan shop manual has a complete wiring diagram, they can be found on e-bay.
where to find wiring diagram for a vauxhall vectra 1.7 td
go to oreillys and buy a chilton book for your vehicle wiring diagram is in it