PARKING SENSOR SYSTEM WIRING DIAGRAM [PARKING SENSOR] TROUBLESHOOTING INDEX [PARKING SENSOR] No.1 SYSTEM DOES NOT OPERATE [PARKING SENSOR] No.2 MALFUNCTION DETECTION SOUND ACTIVATED [PARKING SENSOR] No.3 NO DETECTION SOUND/LOW VOLUME [PARKING SENSOR] No.4 INDICATOR LIGHT DOES NOT ILLUMINATE [PARKING SENSOR] No.5 CANNOT DETECT OBSTRUCTION [PARKING SENSOR] No.6 DETECTS VEHICLE SPEED OF 10 km/h {6.2 mph} OR MORE [PARKING SENSOR]