What is the number of the fuel pump relay for the Passat Lingyu?

[Sean]

The fuel pump relay for the Passat Lingyu is No. 372. Composition of the fuel pump relay: As a control device, the relay is connected in a circuit and requires two control systems—the input circuit (also known as the control system) and the output circuit (also known as the controlled system). Specific characteristics of the fuel pump relay: Generally, a relay has several main contacts, along with two coil contacts, resembling a contactor. The main contacts are connected to the controlled system, while the coil contacts are linked to the control system. However, the contacts of a relay are usually visible. Function of the fuel pump relay: The primary function of the fuel pump relay is to control a high-power circuit with a very small current, while also expanding the control range. When a signal reaches a certain value, it can switch, disconnect, or connect multiple circuits simultaneously based on the different forms of contact groups, achieving automatic switching. Another function is to adjust the opening and closing of the fuel pump as needed to ensure the normal operation of the engine.