{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"BE","section_name":"Body Electrical System","page":31,"pages_in_section":116,"title":"Wipers and Washers Troubleshooting","section_header":"Body Electrical System — Wipers and Washers","ocr_text":"WIPERS AND WASHERS\nTroubleshooting\n\nProblem | Possible cause | Remedy | Page Front Rear\n\nWipers do not operate or return to off position | WIPER fuse blown Wiper motor faulty Wiper switch faulty Wiring or ground faulty | Replace fuse and check for short Check motor Check switch Repair as necessary | BE-4 BE-33 BE-31 BE-4 BE-34 BE-34\n\nWipers do not operate in INT position | Wiper relay faulty Wiper switch faulty Wiper motor faulty Wiring or ground faulty | Check relay Check switch Check motor Repair as necessary | BE-31 BE-31 BE-33 BE-34 BE-34 BE-34\n\nWashers do not operate | Washer hose or nozzle clogged Washer motor faulty Washer switch faulty Wiring faulty | Repair as necessary Replace motor Check switch Repair as necessary | BE-31 BE-34\n\nReference:\n[DIAGRAM OF WIPER SWITCH SHOWING MIST, Washer OUT, ON, OFF, INT positions with LO and HI settings]\n\nFront Wiper and Washer Switch\nINSPECT SWITCH\nINSPECT SWITCH CONTINUITY\nInspect the switch continuity between terminals.\n\n[TABLE SHOWING TERMINAL CONNECTIONS]\nSwitch Terminal (Wire color) Switch position | 4/20 +S (L-R) | 7/20 +1 (L-B) | 8/20 W (L) | 12/20 C1 (Y-B) | 13/20 L1 (L-O) | 16/20 B (B) | 18/20 L-W (L-W) | 8/20 V1 (Y) | 14/20 V2 (Y)\n\nOFF | ○—○\nWiper INT | ○—○\nLO | ○—○\nHI | ○—○\nWasher OFF |\nON | ○—○\nWind Time Control | SLOW | Approx. 50 kΩ\nFAST | ○—○\n\nIf continuity is not as specified, replace the switch.\n\nWiper Control Relay\nINSPECT CONTROL RELAY\n1. INSPECT INTERMITTENT OPERATION\n(a) Connect the positive (+) lead from the battery to terminal 5 and the negative (—) lead to terminal 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}