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In Bangladesh the color of live is green and neutral is blue and ground is black.
check the fuse, if it is not blown, your tail lights may be missing ground, locate the ground wire on your tail light socket, then get a wire and a metal thumb tack, push the thumb tack thru the ground wire and splice the extra wire and wrap the bare wire around the thumb tack, turn your tail lights on and touch the bare metal of your van and see if it lights up, if it does lights up, just splice it and reconnect to the new ground source, hope this help you out :-)
General Speaking White is the Common or Ground Wire. Perhaps if you searched online for the maker of the braking system you would find them and could call and ask if they are still in business that is. Hope This Helps.
Sorry, there is no "ground wire" for a microphone. Commercial microphones have shielded symmetric wiring. Cheers ebs
White is the neutral wire. Black is hot, green is ground.
Problem with it is the ground wire wont hold a load on a trailor with more than two lights-----ground it yourself to frame
You have a grounding problem at the trailer. The white wire is the ground on trailer wiring. The taillights are brown, the signals and stops are yellow and green. Sometimes the white wire will loose its continuity with the truck, causing the lights to black out. It could also be a wiring issue with the trailer itself, but most likely its the ground giving you feedback and causing the blackout. run a wire from the ground contact on your plug back to a spot on the tongue and secure the end of the wire to the trailer at that point. Do not rely on the contact of the trailer with the ball hitch to establish a ground.
poor ground wire
check the ground wire on the trailer. if it is corroded at all they may not work. take a file to where the ground wire is hooked up to make sure it is on bare metal
Fuse is blown light connector is unplugged ground wire on trailer disconnected
Probably the functions, running lights, reverse, brake, blinker, and a ground.
Check your ground wire, all the lights must be grounded back to the vehicle.
The tow bar comes with a color coded wiring harness. The tail lights, blinkers, and brake lights are hooked up to a terminal near the trailer hitch of the towing vehicle and then the tow lights are plugged into the socket for the car lights. There are four wires. The brown is the brake lights, the green and black are blinker lights, and the white wire is the ground wire.
Most commonly, trailer harnesses have four wires. The white wire goes to ground; the brown wire is for tail lights and sidemarkers; the yellow and green wires are for the left and right blinkers and stop lights (not sure which color goes to which side, but you can experiment before you splice the wires).
Check ground circuit Check bulbs they are duble filamented one may be burned out Seems to me there is a wire crossed at the harness. I think the vehicle left turn signal wire is hooked up to the trailer tail lights wire. Usually there are four wires at the trailer harness, yellow, green, white, and brown, The brown wire is usually the tail lights and side marker lights, the white wire is ground, the yellow and green go to the left and right signal lights.
A four-wire harness kit has 1 white wire that connects to ground; 1 brown wire that illuminates the side markers and the tail lights; 1 green and 1 yellow wire, they are for the right and left signal lights and brake lights (I don't remember which color goes to which side, but you can experiment before you splice).
DO NOT GROUND THE BROWN WIRE. It runs your running lights. Ground it and you will blow the fuse - and the lights will stay dark. Ground the white wire. Just put a ring connector on it and put it under a sheetmetal screw on the body of the tow vehicle. Yellow and Green are combination brake and turn signal circuits. I think green is left and yellow is right, but I'm not sure. Blue runs trailer brakes. Red charges the trailer battery. This all assumes that you are using the sort of industry standard colors. I've seen all kinds of screwed up trailer wiring - including all one color. Good luck.