[RJT Impala]

I have attempted to find info via search of this forum and Google.

Issue: After closing driver's door and window raises to the closed position (indexes), the window continues to cycle the indexing attempt and repeats this cycling for approximately 15 seconds or until the key is turned to start the engine. As it cycles, the interior light flickers/dims from the electrical load placed on the system.

Attempt to Resolve: I have reindexed the driver's window multiple times, and while this appears to resolve the issue temporarily, it ultimately returns.

I don't know what mechanical or electronic components (other than the wondow motor itself) are contained within the door. It seems to me that there may be a limit switch that is not properly sensing the window in the proper, full-up position and it continuously cycles power to the motor attempting to "make" the limit switch. I believe it ultimately stops cycling as power is interrupted by the function that "kills" exterior and interior lights after closing the door.

Has anyone else experienced this? Any ideas regarding the cause and resolution of this issue?

thanks in advance.