Page 1567 - Foton Workshop Manual - Auman EST-M

Electrical system –circuit EL - 143

Details of samples of electrical circuit diagram IN

Number Meaning Overview
DI
1 System name Differentiate different systems and functions according to the names for easy inquiry

To identify wires for different functions by their colors to facilitate inquiring and
EG
maintenance. Basically, one single color or two colors are used on the wires.
2 Color code of wires
e.g.: Br = brown B = black O = orange W = white R = red P = pink Sb = sky blue V =
TR
violet L = blue Gr = grey Y = yellow G = green Lg = light green

Name of electrical To define the names according to the function of the electrical components to facilitate
3 AX
components sorting.

Assign the code according to the harness where the plug & socket connector for the
FR
electrical component is to facilitate sorting. For example: the lamp combination switch

has a 18-pin plug & socket connector and this connector belongs to the vehicle body
Code of electrical ST
4 harness, vehicle body harness, which is defined as B harness, so define the code of the
components
combination switch as B034.
A = engine harness B = vehicle body harness C = left door harness D = right door BR
harness E = ceiling harness F = frame harness G = floor harness H = rear light harness
To define the code of the plug & socket connector between the harnesses, to facilitate BW
inquiring the definitions of their terminals.

EL
Pins of plug & socket

5 connectors for electrical

components
Example for the harness plug & socket connector:

It refers to the connecting joint of the between the return wire of electrical components
and the metallic body part of the vehicle. Depending on the locations of earth points,
6 Earth point different codes are defined. Take “B061” for an example, B stands for belonging to

vehicle body harness, and according to the “layout of plug & socket connector for the

vehicle body harness”, its location can be determined.

Indication of related To indicate the wires in relation with other system or to indicate the electrical
7
system or component components connected to them. Refer to the related system indicated by them for detail.

The code of plug & socket connector be harnesses. One plug & socket connector
8 Code of connector
contains two pieces, i.e., male piece and female piece.

Male piece Female piece

Male Male symbol Female
9 Connector plug Female symbol

EL-143