News center

Automotive wiring harness is one of the important components of the automotive electrical system, it consists of a number of thin lines woven in a specific way, as a thin line connecting the various electrical devices on the car, the color code represents the different functions and uses of these thin lines. This article introduces you to the car wiring harness color code represents the meaning of the book.
Black: Generally indicates the negative (ground) power line, such as: terminal ground, WYSIWYG (SOS) electronic system load and sensor ground; Red: Generally indicates positive (power) power wires, such as: positive battery wires, generator wires, ignition wires, and control module power wires;
Yellow: indicates oxygen sensor wires or sensor signal wires, e.g., oxygen sensor or sensor for oil temperature measurement;
White: indicates headlights, rear lights ( reverse lights), interior lighting, etc., also used for the position bulb wires of the audio system, monitor and navigation equipment;
Blue: indicates high beams, anti show lights, desalination units, etc. Blue wires can also indicate cooling systems, e.g. wires for engine temperature sensors;
Green: indicates speed or rpm sensors or corresponding signal transmission wires for automobile engines, some cars will also use green wires to transmit diesel engine UTE data;
Orange: indicates position and wide lights as well as seatbelt alarms and side lights, and can also be used as a backup power supply wire; Purple: is used for automotive cameras, e.g., navigation cameras, retrograde monitoring cameras, smart headlight cameras, etc;
Gray: indicates air pressure sensors, throttle position sensors, speed sensors, etc. Also, it can be used to indicate seat heater wiring; Brown: indicates door controllers, electric suction doors, trunk spring coils, etc. Brown wires can also be used to indicate body control modules, driver safety systems, and so on.
In short, the automotive wiring harness color codes represent the function and purpose of each wire in the automotive electrical system, and their role is crucial; the connection and configuration of any wiring harness must follow the specifications to ensure the stability and reliability of the automotive electrical system. Understanding the meaning of these frontal color codes is important for repairing your car, troubleshooting and installing accessories.