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 a scan tool to monitor ratio control motor circuit A2 status with the engine running. Wiggling wires while watching for a change in the status parameter may locate the area where a fault in the wiring may lie.