1974 Headlight Switch pinout, 1974 Headlight Switch pinout Options

[mgarrison]

Hello,

I was hoping to reuse the light switch that was in my 74, but I am really struggling with the "current flow diagram" vs a typical "wiring diagram". The wiring diagram for the 71 is much easier for my addled brain to follow. However, the 71 used a different light switch with fewer connections, so not much help!

I no longer have popups, so I wont be using those connections, but hoping to use the connections for parking lights, headlights, and maybe the dimmer (knob twist) for the gauge lights.

Here's what I THINK I have ferreted out from the 74 current flow diagram in the service manuals:


Here's the best pic I could get of my light switch that shows most of the connection numbers (11 total connections):


I hoping someone can maybe confirm what I have so far as accurate, or even better share where each connections goes/it's purpose (IMG:style_emoticons/default/pray.gif)

[davep]

K: illumination output for instruments. goes to fuse 7 input. often has a jumper for 58b but I replace with a wire from fuse 7 output so that the gauge lights are fused; several harnesses I have see had the jumper and other wires totally fried.

30: battery hot wire from fuse 10 input

30B: connected to 30 when switch is off, puts headlights in down position

58a: dimmer output for gauge illumination

58b: dimmer input; do yourself a favor and source from fuse 7 output