Circuit Description
WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
The driver window switch signal circuits provide inputs to the Intelligent Switching Unit (ISU) when the driver window switch is activated to the UP or DOWN position. These inputs allow the ISU to detect a window UP or DOWN request. The ISU provides power and ground to the driver window switch. When the driver window switch is activated to the express DOWN position, power is supplied through the window switch to the signal circuit, which is pulled high. When the ISU detects high voltage on the signal circuit, it will command the window in the DOWN direction. When the switch is pressed again, the command ceases.