Section 40 (Body Control Unit): Operation: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Land Rover Discovery, 2003 Land Rover Discovery, 2002 Land Rover Discovery, 2001 Land Rover Discovery, and 2000 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
For IDM inputs which are also inputs for BCU functions, the delay before the BCU recognizes the change in input status is less than 250 ms. The BCU uses a de-bounce algorithm to ignore changes in input having a duration less than 100 ms with the exception of automatic gearbox W, X, Y, Z inputs, which have a de-bounce period of 33 ms.