Front Passenger Door Power Lock Switch
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
In order to receive an input from its associated door lock switch, the front passenger door module supplies battery positive voltage and ground to the switch. Their are two circuits for battery positive voltage, one for a lock input, and one for a unlock input. The module supplies ground to the switch via a third circuit. When the switch is activated for a lock or unlock function, voltage flows through the switch, providing the module with the necessary input.