Diagnostic Aids
WARNING: This page is about a different car, the 2003 Saturn Vue and 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
To locate an intermittent problem, use the scan tool to monitor line PC solenoid actual and reference current for a large difference with the engine running. Wiggling wires while watching for a difference between the two parameters may locate the area where an open or a short to voltage in the wiring may lie. Line PC solenoid resistance at 68°F (20°C) = 3.5-4.1 ohms.