{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"AC","section_name":"Air Conditioning","page":27,"pages_in_section":111,"title":"Air Conditioning","section_header":"Air Conditioning System — Troubleshooting","ocr_text":"AC–27\n\nAIR CONDITIONING SYSTEM – TROUBLESHOOTING\n\nHINT:\n• If the instruction \"Proceed to next circuit inspection shown on matrix chart is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check.\n• If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the A/C amplifier.\n\nColumn Headers (left to right):\nAC–52\nAC–54\nAC–56\nAC–58\nAC–60\nAC–62\nAC–66\nAC–69\nIN–35\nAC–71\nAC–76\nAC–77\nAC–107\nAC–92\nAC–91\nAC–95\nAC–96\nAC–98\nAC–97\n\nRow Labels (top to bottom):\nBackup power source circuit\nIG power source circuit\nACC power source circuit\nHeater relay circuit\nBlower motor circuit\nCompressor circuit\nA/C control assembly circuit t\nTemperature set dial circuit t\nA/C amplifier\nRefrigeration system inspection with manifold gauge set\nRefrigerant volume\nDrive belt tension\nElectric cooling fan\nCondenser\nReceiver\nEvaporator\nHeater radiator\nExpansion valve\nWater valve\n\nTable Data (row by row):\nRow 1: IG power source circuit=1, ACC power source circuit=2, A/C amplifier=3\nRow 2: Heater relay circuit=1, Blower motor circuit=2, A/C amplifier=4\nRow 3: Blower motor circuit=2, Compressor circuit=1, A/C amplifier=3\nRow 4: Blower motor circuit=1, A/C control assembly circuit=2, A/C amplifier=3\nRow 5: Compressor circuit=4, A/C control assembly circuit=14, Temperature set dial circuit=13, A/C amplifier=15, Refrigeration system inspection=3, Refrigerant volume=1, Drive belt tension=2\nRow 6: A/C control assembly circuit=8, Temperature set dial circuit=7, A/C amplifier=9, Water valve=1\nRow 7: A/C control assembly circuit=20, Temperature set dial circuit=19, A/C amplifier=21, Refrigeration system inspection=3, Refrigerant volume=1, Drive belt tension=2, Electric cooling fan=4, Condenser=14, Receiver=15, Evaporator=16, Heater radiator=17, Expansion valve=18, Water valve=5\nRow 8: A/C control assembly circuit=6, Temperature set dial circuit=1, A/C amplifier=7\nRow 9: A/C control assembly circuit=2, A/C amplifier=3\nRow 10: A/C control assembly circuit=3, A/C amplifier=4\nRow 11: Compressor circuit=1, A/C amplifier=2\nRow 12: Compressor circuit=1, A/C amplifier=3\nRow 13: Backup power source circuit=1, A/C amplifier=2","image":"https://tsrm.sasquatchvc.com/images/mk4/AC/AC_027.png","url":"https://tsrm.sasquatchvc.com/mk4/tsrm/AC/27","prev":{"page":26,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/AC/26","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/26"},"next":{"page":28,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/AC/28","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/28"},"section_url":"https://tsrm.sasquatchvc.com/mk4/tsrm/AC","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/1","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/2","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/3","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/4","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/5","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/6","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/7","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/8","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/9","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/10","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/11","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/12","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/13","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/14","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/15","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/16","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/17","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/18","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/19","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/20","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/21","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/22","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/23","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/24","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/25","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/26","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/27","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/28","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/29","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/30","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/31","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/32","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/33","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/34","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/35","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/36","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/37","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/38","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/39","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/40","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/41","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/42","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/43","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/44","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/45","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/46","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/47","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/48","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/49","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/50","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/51","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/52","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/53","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/54","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/55","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/56","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/57","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/58","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/59","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/60","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/61","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/62","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/63","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/64","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/65","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/66","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/67","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/68","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/69","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/70","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/71","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/72","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/73","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/74","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/75","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/76","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/77","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/78","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/79","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/80","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/81","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/82","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/83","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/84","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/85","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/86","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/87","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/88","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/89","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/90","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/91","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/92","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/93","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/94","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/95","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/96","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/97","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/98","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/99","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/100","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/101","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/102","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/103","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/104","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/105","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/106","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/107","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/108","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/109","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/110","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AC/111"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}