IPC Input Parameters:

WARNING: This page is about a different car, the 1990 Buick Riviera and 1990 Buick Reatta. However, it is still accessible from the selected car via links, so may be relevant.

II10 Speedo select switch display is HI as long as switch on IPC is depressed.
II11 Fuel gauge switch display is HI as long as switch on IPC is depressed.
II12 Trip reset switch display is HI as long as switch on IPC is depressed.
II13 English/Metric switch display is HI as long as switch on IPC is depressed.