DeVille DTS V8-4.6L VIN 9 (2002)
Door Switch: Description and Operation
DRIVER DOOR SWITCH ASSEMBLY (DDSA)
The Driver Door Switch Assembly (DDSA) contains the only power window switch for the driver door window, and, also contains a window switch for
each of the vehicles passenger doors. However, these switches differ from the individual passenger door power window switches mounted locally on the
passenger doors in that, there are no external circuits. When a power window switch is operated on the DDSA, the DDSA interprets the switch signal,
and then sends the appropriate request message, via the class 2 serial data link, to the appropriate door module to operate the window.
