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Old 07-19-2014, 03:24 PM
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Trouble wiring carling switches

Installing f650 dash piece with switches and gauges. I have to wire up several on-off and on-off-on switches. I already have toggle switches in the truck for the accessories I have. So, all I need to do is replace the toggle switch with the carling switch. The on-off carling switches I have wired up. They work fine. These on-off-on switches are kicking my @$$. I'm following the diagram and I keep blowin fuses. I will uses my fogs as an example. I have them wired up to either be on all the time, off, or on with headlights. When I wire up the carling I can get them to come on, but when I switch to the other on position ( come on with headlights) I blow the fuse. Here's how I had it wired. #7-ground, #8-dash illumination, #2-power in (coming from aux. fuse box that is only powered when ignition is on) #3-power out to low beams, #1-out to relay. I know I must have something backwards. Thanks for any help
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Old 07-19-2014, 04:51 PM
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Ok found some info on how to wire and it still didnt work. Here's how I wired it:

#1-goes to accessory, #2- goes to switched 12v power, #3-goes to 86 relay post, #7- ground, #8-dash illumination.
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Old 07-20-2014, 06:44 AM
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??? Somebody knows this. There are only five posts at the back of the switch. I know that two of those posts are used for a ground and then illumination coming off the headlight switch. That leaves three posts. Pretty confident that the number two post at the back of the switch is the post that receives the 12 V switched power. That leaves the last two posts running out to my accessories. Know matter which way I wire those two posts it always blows the fuse.
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Old 07-20-2014, 06:53 AM
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I'm not familiar with these switches at all, but, the only time a sw needs a Ground is for the illumination. You say these have TWO???? Are you sure that's right? A wrongly grounded terminal would do as you say, blow fuses....
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Old 07-20-2014, 07:22 AM
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It only has one ground. Everything I've read said that post #7 is ground. So that's what I've been doin.

My last post was confusing. Sorry. I meant there is only one ground. Not two
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Old 07-20-2014, 07:37 AM
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the foglights are funky the way the ground is used to switch and lock out use during the brights operation

I am sure thats why your having an issue but since you have it set up with a switch now the carling sould work (obviously) I think in the off position the foglight lead must be connecting to +or- and when you use the OEM switch it shorts


bummer about doing these for someone is finding particular switch pin layout for the carling part # ( they have tons) opening it in paint doing the diagram then posting the pic
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Old 07-20-2014, 08:00 AM
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I dunno. I'm gonna have to get someone to physically look at. It's hard trying to figure this stuff out when others can't actually look at what you're talking about. My on/off switches work great. I don't know what the deal is with these 3 way switches. It pops the fuses on my fogs, kc driving lights and reverse lights every time
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Old 07-20-2014, 10:40 AM
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What model number carling switch do you have? DO you have lights in both parts of the switch?
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Old 07-20-2014, 10:51 AM
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You may need a different switch to do what you are doing. Pin #2 is a common power for both (on) positions. Pin 1 and pin 3 are the outgoing to the two positions. These switches would be used to "replace one accessory for another" like "Headlights on" (off) "Fog lights on" you would need a dpdt switch to do what you are wanting I believe. Or you could just wire it up as a normal 2 position switch, leaving either pin, 1 or 3 blank. pin 7 and 8 are separate as they are for the dash lights. pin 2 is coming from battery (fused) and pin 3 or 1 goes to you KC lights or whatever
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Old 07-20-2014, 10:53 AM
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Yeah for the on/off/on its V6D2. It's has two LEDs. One big square that lights up green with the parking lights and then a thin rectangular light at the bottom of the switch that lights up amber when the switch is turned on. I have only five posts at the back of the switch. 1,2,3,7 and 8.
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