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Why do I keep blowing out my CH4x4 switch?

Discussion in 'Lighting' started by hammertaco11, Sep 21, 2018.

  1. Sep 21, 2018 at 7:52 PM

    anthony250f Well-Known Member

    Feb 18, 2012
    First Name:
    San Diego, CA
    2008 dcsb trd offroad 4wd
    Use one power trigger for the light and one wire will be power to the switch, and another wire will go to the relay.
  2. Sep 21, 2018 at 8:38 PM

    bagleboy Well-Known Member

    Aug 5, 2017
    First Name:
    Norcal, Santa Rosa
    2014 5-lug AC 2.7L VVTI
    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Usually that's the way it's done, one fused wire feeding the relay and a fused 12V source feeding the switch(or bank of switches if they're all low current).

    Obviously the switch is passing current, and more than a little. The small push switch has 4 connections:
    One that feeds the switch itself.
    One that is the switch output.
    One that feeds the courtesy light led.
    One that is ground for both the courtesy light led and switch-on led.

    The only two that matter as far as the switch failing are switch power in and switch power out, the other two are a separate circuit in the switch housing. Power can only flow through the switch-on LED if the ground wire is connected to either chassis ground or the dimmer ground. I've read of occaisional issues with the button being finicky about turning off or on but one would know it's still on since the lights would be on.

    I'd start over using a relay and since op wants the courtesy light wire that up too.

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