Scheme 1 Log in Scheme 1: POWER WINDOW SYSTEM WIRING DIAGRAM [POWER WINDOW SYSTEM] Scheme 2 Log in Scheme 2: Troubleshooting Procedure Slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. Scheme 3 Log in Scheme 3: POWER WINDOW SYSTEM TROUBLESHOOTING QUESTIONNAIRE [POWER WINDOW SYSTEM]