What does terminal 31 mean in Volkswagen?
1 Answers
Volkswagen terminal 31 refers to the battery negative ground wire. Characteristics of Volkswagen circuit diagrams: In Volkswagen circuit diagrams, you often encounter connection points marked with numbers and letters, each with a fixed meaning. For example, the number 30 represents the power supply line from the battery positive terminal; the number 31 represents the battery negative ground wire; the number 15 represents the ignition power supply line from the ignition switch; the number 50 represents the starter power supply line when the ignition switch is in the start position; and the letter X represents the power supply line for high-capacity electrical equipment controlled by the ignition switch (from the load relay). Overall markings in Volkswagen circuit diagrams: Each wire is labeled with its color and cross-sectional area. The ends of the wires have terminal numbers or socket numbers indicating their connections. Color markings are represented by letters, with the following correspondences: ws=white; sw=black; ro=red; br=brown; gn=green; bl=blue; gr=gray; li=purple; ge=yellow. If a wire has two colors, it is marked with both color letters, such as ro/sw or se/ge. The cross-sectional area of the wire is indicated by a number above the wire color, in mm². For example, 4.0, 6.0, etc.
