Key-off Operation Function Operates even if Operating Conditions are not Satisfied: Description
WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
The multiplex network master switch keeps power supplied to the power window regulator motor for 43 seconds after the engine switch is turned off. However, the master switch will cut power if one of the following occurs: 1) driver side door is opened within 43 seconds, 2) a signal from the driver door courtesy light switch is input to the cowl side junction block ECU RH within 43 seconds, or 3) no power window activity occurs within 43 seconds.