SRX 2WD V8-4.6L VIN A (2004)
Power Window Switch: Description and Operation
PASSENGER DOOR WINDOW SWITCHES
Each passenger door has a power window switch mounted to it. The passenger door modules, PDM, LRDM, and RRDM, each supply battery voltage
and ground to their associated power window switch. There are 3 circuits for voltage between each passenger door power window switch and its
associated door module, one for an Up signal, one for a Down signal and one for an Express signal. The door modules each supply ground to their switch
via a fourth circuit. When the switch is activated for an Up, Down, or Express function, the normally open switch contacts for that function are closed to
ground, and voltage flows through the switch, providing the associated door module with the necessary signal.