The answer depends on the electrical wiring standards of the country you are asking about.
Answer for USA, Canada and countries using similar 60Hz household electricity supplies: the ground or "earth" cable is just bare wire or has green insulation.
Answer for countries in Europe and in other world areas which use similar 50Hz household electricity supplies: the earth or "ground" cable has yellow/green striped insulation. (Older earth wiring in the UK may still have bare wire or green insulation.)
For more information see the answers to the Related Questions shown below.
Three conductor cables have the two colors green/yellow for ground/earth. AC are has the colors blue and brown.
You call an electrician.
The earth wire, striped green and yellow, is connected to the terminal marked E; this should be the longest of the three wires so that it is the last to become detached if the cable is strained.The live wire (brown) is connected to the terminal marked L.The neutral wire (blue) is connected to the terminal marked N.
The Active wire is always either Red (in a 3 core Red, Black and Green cable) or Brown (in a 3 core Brown, Blue and Green/Yellow cable). You can also be electrocuted by the neutral (Black or Blue) wire if the active is still supplying current through a device. The only truly safe way to handle mains wiring is to completely isolate the circuit at the fuse board.
There are many ground wires on this vehicle. The main one being the negative, (Black) battery cable.
Brown black and ground (yellow=green). The brown and black can alco be black and blue and brown and black
Brown black and ground (yellow=green). The brown and black can alco be black and blue and brown and black
Brown;Grey;Black;green/Yellow
It is the black cable on the battery. All GM ground wires are black.
Three conductor cables have the two colors green/yellow for ground/earth. AC are has the colors blue and brown.
The black cable is the negative or ground. The red cable is the hot or positive calbe.
All depends on what country you are in, wiring standards and cable type. Industrial cable in the UK is. :- Red = Live Black = Neutral Copper wire = earth. (add Green/Yellow striped sleeve at junctions.) Domestic is:- Brown = Live Blue = neutral Green/yellow stripe = Earth Europe Black = Live Blue = Neutral Brown = Earth
In a set of cables with red, black (or white) and yellow cables, the yellow cable is a composite video cable.
{| ! Wire Function ! Cable core colour | Ground (Chassis) Brown +12 Supply Red Accessory On Yellow Ignition On Black Illumination Grey / Yellow Power Antenna Blue Front Left Speaker + Yellow / Black Front Left Speaker - White / Black Front Right Speaker + Yellow / Brown Front Right Speaker - White / Brown Rear Left Speaker + Yellow / Green Rear Left Speaker - White / Green Rear Right Speaker + Yellow / Red Rear Right Speaker - White / Red for cars up to 1994 or you could use an autoleads wiring loom get them from halfords or motorworld |}
Primary: blue, orange, green, brown, slate Secondary: white, red, black, yellow, violet
The GREEN and BLACK is a non stereo hook-up cable. Use the Green for VIDEO and the Black for the LEFT channel of AUDIO.
Follow the cables to see where they go, one cable will be fastened to the car chassis, this is your ground wire or the negative post, the other wire should make it's way to the alternator this is your positive cable.