{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"AC","section_name":"Air Conditioning System","page":10,"pages_in_section":46,"title":"Air Conditioning System","section_header":"Air Conditioning System — General Description","ocr_text":"1. PRINCIPLE OF A/C ELECTRICAL CIRCUIT\n\n[Diagram showing electrical circuit with components: Ignition Switch (ACC), Circuit Breaker, HTR Fuse, Fuse, Battery, Heater Motor, Blower Motor, Blower Switch, A/C Fuse, A/C Switch, Dual Pressure Switch, A/C Amplifier, Magnetic Clutch Relay, Magnetic Clutch, Thermistor, TEMP]\n\n2. HOW IS THE MAGNETIC CLUTCH ENERGIZED?\n\nThe general process until the magnetic clutch is energized is shown below.\n\n① Ignition Switch \"ON\"\n|\n② Blower Switch \"ON\" ——→ Heater Relay \"ON\" (Blower Motor \"RUN\")\n|\n③ A/C Switch \"ON\" ——→ A/C Amplifier \"ON\" (A/C Amp. Main Power Supply)\n|\n④ Dual Pressure Switch \"ON\":\nRefrigerant Condition (2.1 kg/cm² (30 psi, 206 kPa) less than 27 kg/cm² (384 psi, 2,648 kPa))\n|\n⑤ Thermistor supplies temperature signal of evaporator to A/C amplifier.\n|\n⑥ VSV \"ON\" ——→ E/G Idle-up\n|\n⑦ Magnetic Clutch Relay \"ON\"\n|\n⑧ Temperature Sensor \"ON\":\nTemperature of Temperature Sensor is less than 180°C (356°F).\n|\n⑨ Magnetic Clutch \"ON\"\n|\n⑩ Revolution Detecting Sensor supplies RPM signal of compressor to A/C amplifier.\n\nIf compressor is not locked, magnetic clutch is continuously energized.","image":"https://tsrm.sasquatchvc.com/images/mk3/AC/AC_010.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/10","prev":{"page":9,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/9","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/9"},"next":{"page":11,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/11","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/11"},"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/42","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/43","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/44","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/45","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/46"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}