Window Lockout Feature

The window lockout switch is part of the master DDS. The lockout function is used to prevent the passenger door windows from being operated from their locally mounted switches. When the lockout switch is pressed momentarily, the switch contacts are briefly closed, the LED indicator on the switch button is illuminated, and the DDM processes the switch signal. The DDM sends the switch status via GMLAN serial data to the PDM and the BCM. The DDM, PDM, and BCM will prohibit the passenger windows from being operated from there locally mounted window switches. When the lockout function has been activated, the passenger door windows can still be operated from the driver door by using the DDS.