Defog switch for aux lights? (1 Viewer)

[CharlieS]

I have a defog switch that I saved in my shop from when I had 80s previously. I don't remember if it came from an 80 or another model, but I think people were repurposing them for CDL switches back in the day. I'm thinking about using it as a aux light switch, to trigger a light relay.

I oredered the Slee headlight and auxiliary harness, and my hope/plan is to have a aux light oon/off switch on the dash, but when they are on, have them only work when high beams are on.

Here's the switch, just need to relabel it.

Looks like it fits the dash slots:

And the backside:

As wired, if it is the same circuit as the 80 defog switch (which it probably isn't, since I have more wires), it seems to switch to ground (trigger the ground leg of the defog relay solenoid).

So the wires might be:
Y (yellow) pin 2 - 12v to illuminate light on switch when engaged
L-G (blue green stripe) pin 6- ground trigger to relay (note, I have a blue with orange stripe, not a L-G)
W-B (white black stripe) pin 3 - body ground

And the two not on that diagram in the EWD might be related backlighting illumination?
green white stripe
green

This diagram seems to focus on the lighting circuits:

Time to bust out the multimeter.

Do you see any holes in this plan?

 

[jht3]

i think you are on the right track; with the applicable pages from the wiring diagram. but best to test w/ a 12v source and multimeter.

 

[CharlieS]

I was able to verify the wires functions with my multimeter just now, and the above speculations are correct for this particular switch.

I will need to see if the Slee harness relay is ground switched when it arrives. If it is + switched, I may need to change it at either the relay or switch wiring so it matches up.

 

[thecapedcapper]

Looks like you covered all the high points, but here is the old thread about it because I have it saved.

I ordered a defroster switch from a 4-runner (exact same except label orientation is different) that I'm saving aux lights. Will be nice to have an OEM switch as it looks better/more correct than a lot of the aftermarket switches and has backlighting and an on-indicator!

 

[CharlieS]

Looks like you covered all the high points, but here is the old thread about it because I have it saved.

I ordered a defroster switch from a 4-runner (exact same except label orientation is different) that I'm saving aux lights. Will be nice to have an OEM switch as it looks better/more correct than a lot of the aftermarket switches and has backlighting and an on-indicator!

Thank you!