Changing Input & Verifying Output Response

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.