Rear Door Popper Question...Again

[Ldub]

Ok - I have read everything I can get my hands on and I STILL can't figure out this factory fog light switch. WHY IS THIS STUMPING ME?!! (Wait, don't answer that!) I have studied the diagram, played with this thing with a multi-meter and dash wires for longer than I care to admit... and it still doesn't make sense to me. The only conclusion is that it must be a negative ground / trigger type of switch... or would that be positve... Seems opposite of what I need.

I am trying to wire up a set of Hella Black Magics that I have mounted. As per the wiring they came with, I'll be using a standard 12V relay. The switching mechanism will be a 12V trigger from a 12V tap off of the high-beam side of the headlights. HOW DO I MAKE THIS WORK WITH THE FACTORY (fog light) SWITCH, I ASK YOU? : )
Please... someone?

Thanks in advance!

Ummm...Maybe there's no current to your scource until the high beams are on ?
Just a "maybe".

[MSHardeman]

Amnesia,

I still haven't gotten my rear door popper to work yet. Granted, I haven't spent any time on it since Moab, but the two things that I still need to do are to scrape the paint out from under the ground wire for the solenoid at the back door, and to wire in the horn relay. Moncha's diagram for the factory switch (which I have too) is great, but I don't know how to wire that into the horn relay. I got a quick diagram from Moncha that show's three wires (one wire from ground, through switch to relay, one wire from hot source to relay, and one wire from ground through solenoid to relay) for the installation, but the relay I have has four blades on it, so I don't know what wire goes to what blade on the relay and which blade remains open. This might be easier if I took some pictures and drew some diagrams.

Either way, Moncha's wiring diagram for the switches (above) work. My switch lights up when the dash lights come on and dims when the rest of the dash does. So, I know the switch is wired up right, I just can't get it to fire the solenoid at the back door. I'll keep you up to date as I try and figure things out.

[Amnesia]

MSHardeman, I will tackle the remote popper next! Like you have done, I will be wiring it to the factory (Rodeo) switch & wiring harness too. Wish me luck. I'll also be attempting to make it work off of my remote keyless entry keyfob... More relays!! Woohoo!

I don't have an answer for my problem yet (or yours), but I feel that I'm on the cusp of discovery! Check out the following link for an EXCELLENT primer on how to wire a simple relay. http://www.partsexpress.com/pdf/500-001.pdf I wish I could have found this earlier today while I was at work, "working" on this!

I think that once I print this out tomorrow at work and take a little time to soak it all in, that I might just get this figured out.

Some questions that I still have are: WHY? - Are the Dashlights and Switch pins on the Foglight pic BOTH connected to the Green w/Red Stripe and WHY? - Are there two Ground pins? and WHY? - Does the On Indicator pin LOOSE power when the switch is depressed (on) and have power when the switch is off? <--My negative trigger theory.

In the meantime... If someone doesn't mind scribbling something down and posting how this system should be connected, I would be very gratefull. If not, then I guess I'll post it once I get it fingered out.

Once more, I have: 12V relay that will be wired to pass current to the lamps when the high beam circuit is energized. (12V to Relay Terminal 86 / WAIT! I think it all just gelled!!

Like Monchas picture shows... "On Indicator" pin goes TO RELAY. Yes... I read this before, but it didn't make any sense... until now! I guess I WANTED to have a 12V souce going to the relay to trigger it, but I DO. It is the 12V from the High-beam... the factory switch provides the Ground for the relay to operate! (For some reason I had it in my mind that the Foglight Switch was going to pass 12V to my relay... It all seems so simple now...)

Thank you to everyone who listened while I thought out loud! (Now I just hope it works when I try it out!) ...I still don't get why the Dashlights pin and the Switch pin are connected to the same wire. Does anyone have a wiring diagram of these two switches??

[Moncha]

...I still don't get why the Dashlights pin and the Switch pin are connected to the same wire. Does anyone have a wiring diagram of these two switches??

The dashlights and the switch pin are connected to the same source 'cuz I wanted to have the foglights come on only when my head lights (parking lights) are on. The dashlights is a given, it powers the internal light in the switch. but since I only need a low draw to activate the relay, it worked well for the switch part as well.