Door Modules
WARNING: This page is about a different car, the 1996 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Door modules are used to reduce wiring complexity, and to facilitate faster and easier diagnosis. One door module is located in each front door. Door modules control power door locks, driver window express down, memory recall functions for memory seats and mirrors, keyless entry, and power mirrors.