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Old 06-08-2013, 04:27 PM   #1
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KC Lights wiring question

Just purchased and wired 2x new driving lights to mount on the lower corners of the windshield.

I wired correctly, but cannot get the lights to turn on. I've tried multiple different locations for the ground from the relay, and multiple locations for the white wire (fuse, battery), but still no luck.

When I have the battery on, the LED on the switch itself turns on, but nothing from the lights...anyone have a possible remedy for this?

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Old 06-08-2013, 07:47 PM   #2
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are you sure the wires on the underside of the switch are correct? if you are getting a light on the switch you have a good ground.

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Old 06-08-2013, 08:57 PM   #3
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Take 12 Volts straight from the battery to each light and see if it works that way. If not, suspect a ground issue with lights (possible issue with grounding point such as windshield frame not uncommon).

If they work straight from battery, odds are you are on the incorrect relay terminals for relay activation OR for relay to power lights. This is not possible, since you wired them correctly..... so you must have a bad relay.

I, for one, do not think relays are a good idea in this kind of application, but MANY others will disagree.
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"For Gawd's sake, put a RELAY in there or you could burn the whole damn Jeep to the ground" ...this quote brought to you by people who do not understand the law.....Kirchoff's, Ohm's, or Faraday's.
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Had 75CJ5, 89YJ, 93YJ. Have 82CJ7 & 95YJ____Not one burnt yet due to lack of relays.
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Old 06-16-2013, 01:25 AM   #4
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I'll try that out tomorrow! Thanks!
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Old 06-16-2013, 05:29 PM   #5
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Please post what the issue is when you figure it out. I am getting ready to install my first set of KC's that I bought used.
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Old 06-16-2013, 06:15 PM   #6
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Bc3_jeep please explain how relays are a bad idea for this application? How would you wire them?
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Old 06-16-2013, 06:20 PM   #7
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I bought the KC highlights and their rep said that I need a relay for mine since they draw so much power. He was nice enough to tell me what diagram to use and what kit that they offer for it. Good customer service. Maybe you should shoot them an email.

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