Power Window Lockout Switch: Description and Operation

The window lockout switch is built into the Driver Door Switch Assembly (DDSA). The lockout function can be programmed to prevent both rear windows from being operated from their locally mounted switches, or, to prevent all of the passenger windows from being operated from their locally mounted switches.

When the lockout switch button is pressed momentarily, the LED indicator on the button is illuminated and the DDSA receives the switch signal.

The DDSA then sends a message, via the SBI serial data line, to the Driver Door Module (DDM) indicating that the switch is active. The DDM then sends a message, via the SBI serial data line, to either, both rear door modules, or, all of the passenger door modules to prohibit the windows from being operated from their respective switches. When the lockout function has been activated, all windows can still be operated by using the window switches built into the DDSA.