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Color for each pin in the plug is stamped along side of each pin. This will get you hooked up. I can tell you that green wire is right turn and brake light, yellow is left turn and brake light, brown is running lights and marker lights, white is ground-frame to frame. This 4 wire plug colors and same on a 7 pin plug. It's universal standard. The other wires are for trailer battery charging from vehicle, emergency braking for dis-connect, and to the control box under dash.
I'm showing a brown wire coming out of the headlight switch on 96-99 models going to the park lights. Do you have power on that circuit leaving the headlight switch ?
The 4 prong plug will have 5 wires attached to it.
The white wire is the ground and is attached to the trailer frame near the front. There will be two brown wires and one goes down each side of the trailer. These wires will have a connection at the side marker lights near the front of the fenders. They will then continue to the tail lights. The light bar in the center is also connected to the brown wire.
The yellow wire at the plug is for the left stoplight and the green is for the right stoplight. One of the wires out of the taillights will be brown and the other wire will not match the color of the harness wire.
You mean the truck parking lights dont work, or the trailer running lights dont work? Does the trailer just have tail lights or does it have front and rear side markers? I think you mean the trailer lights. Check for power at the plug,(Brown Wire) if there is power, then you could have wiring problems, but a better description of what works and what doesnt work needs defining.
4 way flat molded connectors allow basic hookup for three lighting functions; right turn signal / stop light (green), left turn signal / stop light (yellow), taillight / license / side marker (brown) and a ground (white).brownwire will run both right and left side markers
Usually one of the holes in the marker light where screw goes in, has
metal contact where screw meets light, but if not, and they are not
push in wire connection type from behind, then just run your white wire
up through hole in housing, and bare the end & tighten it up under
screw holding light to body. White should be ground, brown should be
power.
Usually one of the holes in the marker light where screw goes in, has metal contact where screw meets light, but if not, and they are not push in wire connection type from behind, then just run your white wire up through hole in housing, and bare the end & tighten it up under screw holding light to body. White should be ground, brown should be power.
Took it to the shop. The side marker lights were missing on my son's car. The wiring loops from the side marker lights to the tail lights. As the wires were touching in the front, they shorted out the tail lights. Capped the wires, problem solved!
PS: ordered side marker lights, too.
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