Changing Input & Verifying Output Response

WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.

The purpose is to verify how PCM and actuator circuit respond to sensor input. Perform the following:

Select, view and record appropriate sensor PID(s).
Create a condition to cause input condition to change. Such as disconnecting sensor (open circuit) or jumpering a sensor signal input to ground (short to ground), or increasing TP under load and observe IAC PID and circuit change.
Observe change in actuator PID or actuator signal circuit measured by scan tool.