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Machine Tool Engineer
03 Corolla S, 86 PU
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16 Posts
Discussion Starter #1
hi.
I am in need of some help wiring trailer lights into my 86 PU.
I am using a flat 4 connector (the one with 3 covered prongs and one exposed one).
does anyone have a wiring diagram or instructions on how to do this??
thanks alot!!
 

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Corona is gone.
86 Pickup
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863 Posts
The instructions that came with the plug should work fine. You will have to splice into your rear brake light wires on each side. I recommend you make sure that you properly seal the splices from weather no matter what method you use to splice in.
 

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Machine Tool Engineer
03 Corolla S, 86 PU
Joined
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16 Posts
Discussion Starter #3
there was no instructions with the package I got. just a connector in a package. go figure....
anybody have anything for me?
 

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Corona is gone.
86 Pickup
Joined
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863 Posts
Well you'll have to go to your trailer or search online for which wires go which connector prong. Then splice that wire into the brake wire and the same for the blinker wires (left and right).
 

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Machine Tool Engineer
03 Corolla S, 86 PU
Joined
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16 Posts
Discussion Starter #5
I only have a 2wd version. i was going to splice the trailer connector wires into the existing wires for each light, but my friend stopped me and said that i would need to do more than just splice into the existing.
do I need some kinda of extra unit to make this happen?

he said the way i was going to do it would have caused the brake lights to flash when i turned on the signal lights, i trust what he says because he works on Porches all day long. although he wasnt completely sure how to remedy it. any one have an answer for me??
 

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2008 Corolla
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114 Posts
Well you'll have to go to your trailer or search online for which wires go which connector prong. Then splice that wire into the brake wire and the same for the blinker wires (left and right).
I only have a 2wd version. i was going to splice the trailer connector wires into the existing wires for each light, but my friend stopped me and said that i would need to do more than just splice into the existing.
do I need some kinda of extra unit to make this happen?

he said the way i was going to do it would have caused the brake lights to flash when i turned on the signal lights, i trust what he says because he works on Porches all day long. although he wasnt completely sure how to remedy it. any one have an answer for me??
I did this on a T-bird I onced owned. You should do as '79Corona' suggested and splice into the brake light/marker wiring and the blinker wiring. You should find some kind of instruction that tells you what x wire on your plug should splice to y wire on your truck. Then, you will need to know what that y wire is on your truck. It is fairly simple once you know what goes where!
 
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