Rear Passenger Window Switches

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition switch is in the RUN or ACCY position, or retained accessory power (RAP) is enabled, battery positive voltage is supplied from the PWR/WNDW circuit breaker through the driver window switch to the power window master switch lockout signal circuit, to each rear window switch. Ground is applied from G301 through the driver window switch to each of the rear power window switches. When a rear power window switch is pressed to the DOWN position, battery positive voltage is applied to the window motor down circuit and ground is applied to the window motor up circuit, causing the window to open. When the window switch is pressed in the UP position, the polarity is reversed, battery positive voltage and ground are applied to the opposite circuits and the window closes.