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Splice a trailer harness?

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Old 12-01-2010, 10:36 AM   #1
pjo [OP] pjo is offline
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Question Splice a trailer harness?

Yup after 10 months I finally post something... what can I say most of my questions usually get answered by searching/reading

Has anyone out there spliced a trailer harness to power another set of backup lights/reverse flood lights? I know I could splice off the actuall tail light assembly but this is for a project I am working on with my Go Rhino! Hitch Step. I don't actually use my hitch that often and when I do I can just unplug the whole thing to get it out of the way so I thought this would be ideal...


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Old 12-01-2010, 11:36 AM   #2
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Originally Posted by pjo View Post
Yup after 10 months I finally post something... what can I say most of my questions usually get answered by searching/reading

Has anyone out there spliced a trailer harness to power another set of backup lights/reverse flood lights? I know I could splice off the actuall tail light assembly but this is for a project I am working on with my Go Rhino! Hitch Step. I don't actually use my hitch that often and when I do I can just unplug the whole thing to get it out of the way so I thought this would be ideal...


pjo
What's the question, whether you can do it or not? There's no reason you couldn't. I'm assuming you're talking a 7-pin from a Tacoma with the factory tow package? How do you want the lights to function, are they going to be on a switch in the cab? If you want them to just come on when you put the truck into reverse then I'd use the back-up lights as a trigger for a relay.
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Old 12-01-2010, 03:59 PM   #3
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Hmmm interesting idea... I was thinking along the lines of using the 12V from the 7-Pin and using the Tail and Backup pins as relay connectors Any reason why you would want to use the actual backup lights as a trigger?

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Old 12-01-2010, 04:08 PM   #4
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Originally Posted by pjo View Post
Hmmm interesting idea... I was thinking along the lines of using the 12V from the 7-Pin and using the Tail and Backup pins as relay connectors Any reason why you would want to use the actual backup lights as a trigger?

pjo
I think we're talking about the same thing, taking power from the trailer harness and using the back-up lights as the switch or trigger to turn the lights on.

If I was going to go that route, I'd modify a 7-pin trailer plug so it only uses 2 wires, the ground and the hot wire from the truck. I'd run the power to a relay as the power in, splice into the back-up lights and run that to trigger the relay. That way you could just unplug the lights from the trailer harness and plug in the trailer. I hope that makes sense... it sounds great in my head
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