Offroad/ Fog lights
Ok, so last week, I bought some wiring and mounted some lights that I took off from my old Ford. They're two Baja 100W lights, that came with a 30A relay, hooked them up under the bumper:
put the 2 + wires together, went to the relay(Pin 30) both of the -/ grounds to a good ground beside my washer fluid reservoir 1 Wire going from the relay with an inline fuse(15A) to the battery from relay(Pin 87) Then 1 wire from the relay to the switch(which is also grounded(Pin 85) Then Pin 86 to a clean ground. So, after that, I went and picked up a 40A relay and wired it as such: (Always hot) Pin 87&86 to the battery with same 15A inline fuse Pin 30 to lights Pin 85 to switch. Since this didnt work, I tested the voltage, getting 12V from battery, to the relay, but nothing at the switch or wires going to/ from anywhere. A bit new to wiring, as my old Ford came with everything hooked up and working, so from all of this, am I missing something:confused: All of this is using 14 gauge wires, with some splice connectors. |
Pins 85 and 86 are your control circuits. Put power to one, the other to ground to turn 'on' the relay. (put a switch on either side of it to actually control the relay.)
Pin 30 is power feed from the battery for the load the relay controls. I *think* pin 87a is powered when the relay control circuit is NOT energized, and pin 87 will have power when it is. Test this theory before finalizing your wiring. |
google this "relay diagram for fog lights"
see here http://www.classictruckshop.com/club...ch/foglite.jpg |
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Originally Posted by dhvaughan
(Post 3105752)
google this "relay diagram for fog lights"
see here https://dodgeforum.com/forum/attachm...ine=1386041159 I have pin 85 to the switch, then on the other terminal of the switch is grounded. I figured it needed to be grounded out, but it doesn't? This is almost giving me a headache lol. |
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the diagram above is correct.
don't ground the switch unless it has a ground terminal. a single pole switch should simply turn on/off the 12volt positive power feed. in the diagram above the extra pigtail from the switch is powering an indicator light which requires a ground. if you don't have an indicator light, remove that entire little pigtail and its ground. here's a diagram with no indicator light and a non-grounded switch. Attachment 38485 |
1 Attachment(s)
Originally Posted by dhvaughan
(Post 3105786)
the diagram above is correct.
don't ground the switch unless it has a ground terminal. a single pole switch should simply turn on/off the 12volt positive power feed. in the diagram above the extra pigtail from the switch is powering an indicator light which requires a ground. if you don't have an indicator light, remove that entire little pigtail and its ground. here's a diagram with no indicator light and a non-grounded switch. https://dodgeforum.com/forum/attachm...ine=1386044327 Thank you for being very helpful :icon_worthy: |
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