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This is a taillight adapter which will convert your two wire system on your towing vehicle
up to a three wire system to your towed vehicle. Certain applications will be say, your RV
has a four wire system on it or maybe a five wire system converted down to a four wire
but your towed vehicle has separate turns signals and brake lights. You would use this
box to convert it back up to that at the rear of the vehicle. Well cover a few technical
points on how it actually gets installed. Well show you how it typically gets installed,
the nuts and bolts of it. Its a little bit easier than you think. Basically were going
to use this four pole wire harness as a model here, this is going to be the lead thats going
up to the RV or towing vehicle. What happens is you have the four wires obviously, the
ground, running lights, and turn signals.
These are going to be inputs on this side of the box labeled input. Basically youre
going to do it color for color if you notice youre going to have the brown wire left out.
That doesnt have to be changed or anything that can go straight out to your taillights.
Chances are youre probably going to have to split this to go to the left and right side
taillights. To recap, this is going to be color to color on that and this will go up
to your RV. On the opposite side here, where its labeled output this actually gets connected
to the wire harness itself on the towed vehicle. These will go right behind the taillights,
so for instance on the left hand side your yellow will get connected to the left hand
turn signal. The same thing for the green except it will go to the right. If you notice
on the stop signal theres one wire, again youre going to, just like the running light,
split this off to the left and right stop light signals. Other than that, its a pretty
simple install, it looks complicated but if you take it step by step, its going to be
pretty easy to do. As a final note, this is a heavy duty relay unit which may be mounted
at the rear of the towed vehicle to facilitate wiring. There you have it for part # 118158
the Tow Ready Taillight Adapter.