Driver Door Switch Assembly (DDSA)

The driver door switch assembly (DDSA) contains the only power window switch for the driver door window, however, the DDSA contains a window switch for each of the vehicles passenger doors as well. These switches differ from the individual power window switches mounted locally to the passenger doors in that, there are no external circuits. The DDSA window switches get their power and ground from the DDM. When a power window switch on the DDSA is operated, the normally open switch contacts for that function are closed to ground, and battery voltage flows through the switch. The DDSA interprets the switch signal and sends the appropriate window request to the DDM via the power door serial data circuit. The DDM then sends the request message, via the power door serial data circuit, to the appropriate door module to operate the associated window.