Toggle Switch Wiring

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  #1  
Old 05-18-11, 02:59 PM
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Toggle Switch Wiring

I am replacing a 3-prong on-off LED toggle switch (20A - 12VDC) in my truck and would like to know how to distinguish between the 3 wires: Red, White and Black. I know one goes to +ve terminal (for power), one to -ve terminal (for the LED) and one to the lights that were installed. What's the best way to do this? Thanks.
 
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Old 05-18-11, 05:57 PM
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I managed to install the switch and the led lights up when switched on, but the lights themselves don't turn on. I noticed that there is an additional wire coming off of the -ve terminal that was grounded on the frame and also goes to the installed lights, but that wire has broken away from the frame attachment. Could this prevent the lights from functioning? Thanks.
 
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Old 05-18-11, 07:42 PM
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Yes. All car lights I know use ground to the chassis as the return path.
 
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Old 05-18-11, 07:45 PM
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Perfect thanks. I'll fix up the ground wire and post back.
 
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Old 05-20-11, 08:02 AM
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Discovered two broken wires and once I replaced the ring terminals and grounded them to the chassis, the lights worked. Thanks for the help.
 
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Old 05-20-11, 08:16 AM
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Glad you fixed it. Thanks for letting us know.
 
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