Note On Intermittents
WARNING: This page is about a different car, the 1992 Cadillac Seville and 1992 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Select PCM input switch test. Manipulate affected wiring and connectors and look for throttle switch status change. If throttle switch state changes momentarily, "X" will appear on display.