Preliminary Inspection

Check system related fuses. See WIRING DIAGRAMS  . Ensure windows are free of mechanical binding, battery is fully charged and ground is clean and tight. Check for broken or partially broken wire inside of insulation which may cause system failure but test okay in continuity and voltage check. Check after market electronic equipment that may affect other systems for proper installation. If problem still exists, perform appropriate system test. See SYMPTOM INDEX  table under SYMPTOM TESTS.