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Wiring the third light on truck cap?


4DR99'

Active Member
Joined
Feb 14, 2010
Messages
40
Vehicle Year
1999
Transmission
Automatic
anyone have any tips/DIY topics on how to wire the third light on a leer cap? the wires are hanging down from the cap just can't figure out where to send them. do i tap into the brake light? if so how dod i do that or do i run them up to the cab and if so where? thanks guys
 
under your hood next to your fuse box there should be a caped off green wire that's connected to your brake switch in the cab. if you run a wire from that to the brake light on your cap it won't blink with the turn signals.
 
^^^ what he said...IIRC it is underneath the fuse box. Green, deadended wire with shrink tube over the end.
 
On my 2000 the shop just tapped into the brake wire, they pulled the brake light out tapped into it, punched a small hole into the bed and ran it up the cap. I'd get a picture of it but I can't get to it right now.
 
under your hood next to your fuse box there should be a caped off green wire that's connected to your brake switch in the cab. if you run a wire from that to the brake light on your cap it won't blink with the turn signals.
I saw the green wire now what is that connected to? looks a little too good to be true i assume the other wire is a ground? just splice the green wire and ground the other one somewhere on the body? :icon_confused:


On my 2000 the shop just tapped into the brake wire, they pulled the brake light out tapped into it, punched a small hole into the bed and ran it up the cap. I'd get a picture of it but I can't get to it right now.

pics would be awsome. :beer:
 
I'll see what I can do on pics - I haven't shoveled through all of the 'global warming - aka: climate change' to get to my Ranger (it's down the driveway behind an '89 F-350 and my choptop) yet. The cap is not on the truck right now, it's sitting in the back of the '94 F-350 which is next to my '88 BII down the driveway on the other side of the limestone pile from the Ranger - I may or may not be able to get any pictures of the wiring inside the cap. I might try taking a venture down there tomorrow, I haven't been able to plow down to them since we got 2' of snow within about 12 hours and the skid steer is sitting in the shop refusing to start - which would be what it would take to dig through all of the white crap piled in the driveway.
 
On my 2000 the shop just tapped into the brake wire, they pulled the brake light out tapped into it, punched a small hole into the bed and ran it up the cap. I'd get a picture of it but I can't get to it right now.

If you just tap into the brake light, the third brake lamp on the canopy will blink when you have that signal on.

The green wire is direct power from the brake switch at the brake pedal. Run that to the back of the truck and up through the tail light area on the drivers side and into the canopy. Simply put a terminal end on the ground wire and use a tapping screw to ground it behind the trail light.

I recommend using getting a 2 prong connector so you can simply unplug it when you want to take the canopy off.
 
nice thanks for the help it will be one of my projects tomorrow
 
If you just tap into the brake light, the third brake lamp on the canopy will blink when you have that signal on.

The green wire is direct power from the brake switch at the brake pedal. Run that to the back of the truck and up through the tail light area on the drivers side and into the canopy. Simply put a terminal end on the ground wire and use a tapping screw to ground it behind the trail light.

I recommend using getting a 2 prong connector so you can simply unplug it when you want to take the canopy off.


No, it will not if you get the correct wire, at least on a 2000. I purchased the cap new and had it installed 6 months after I bought my Ranger back in 2000 and that's how the Leer dealer here did it. I ran the truck with the cap like that for about 5 years or so then started swapping back and forth with a tonneau cover. Now the truck has been parked for a year because I had to spend all of my time an money patching up my work truck - my Ranger needs a new core support (lovely PA rust), radiator and some misc other stuff.

Of course, those boneheads also got lazy and instead of running a power wire back from the front of the truck for the light inside the cap they tapped off of the marker lights - which means when I want to turn the light inside the cap on I have to have my marker lights on.
 
I'll see what I can do on pics - I haven't shoveled through all of the 'global warming - aka: climate change' to get to my Ranger (it's down the driveway behind an '89 F-350 and my choptop) yet. The cap is not on the truck right now, it's sitting in the back of the '94 F-350 which is next to my '88 BII down the driveway on the other side of the limestone pile from the Ranger - I may or may not be able to get any pictures of the wiring inside the cap. I might try taking a venture down there tomorrow, I haven't been able to plow down to them since we got 2' of snow within about 12 hours and the skid steer is sitting in the shop refusing to start - which would be what it would take to dig through all of the white crap piled in the driveway.

sounds like it's buried. don't worry about pics if that what it takes.
 
I'll see what I can do on pics - I haven't shoveled through all of the 'global warming - aka: climate change' to get to my Ranger (it's down the driveway behind an '89 F-350 and my choptop) yet. The cap is not on the truck right now, it's sitting in the back of the '94 F-350 which is next to my '88 BII down the driveway on the other side of the limestone pile from the Ranger - I may or may not be able to get any pictures of the wiring inside the cap. I might try taking a venture down there tomorrow, I haven't been able to plow down to them since we got 2' of snow within about 12 hours and the skid steer is sitting in the shop refusing to start - which would be what it would take to dig through all of the white crap piled in the driveway.

sounds like it's buried. don't worry about pics if that what it takes.
 
well, I gotta dig my way down there sometime. Bunch of snow melted today, it might not be too hard to get down there.
 

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