{"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":40,"pages_in_section":46,"title":"Amplifiers","section_header":"Air Conditioning System — Amplifiers","ocr_text":"AC-40\n\nAIR CONDITIONING SYSTEM — Amplifiers\n\nWire Harness Side\n\n[Diagram showing connector with pins labeled F, E, D, C, B, A and numbered 1-10]\n\nS-12-1\n\nAMPLIFIERS\nINSPECTION OF AMPLIFIER\n\nINSPECT AMPLIFIER CIRCUIT\n\nDisconnect the amplifier and inspect the connector on the wire harness side as shown in the chart below.\n\nTest conditions:\n(1) Ignition switch: ON\n(2) Temperature control lever: MAX COOL\n(3) Blower switch: HI\n\nCheck for | Tester connection | Condition | Specified value\nContinuity | 10 — Ground | Constant | Continuity\nVoltage | 2 — 10 | Turn A/C switch on. | Battery voltage\n | | Turn A/C switch off. | No voltage\nResistance | 6 — 9 | Constant | Approx. 1.5 kΩ at 25°C (77°F)\n\nINSPECTION OF SYSTEM AMPLIFIER\n(In A/C Control Panel Assembly)\n\n1. False Signal Input to System Amplifier.\n\nFalse Signal | A | B\n\nCondition | Interior room temperature is very low. | Interior room temperature is very high.\n | [Diagram showing SYSTEM AMPLIFIER connected to IN-CAR SENSOR marked OPEN] | [Diagram showing SYSTEM AMPLIFIER connected to IN-CAR SENSOR marked SHORT with ground]\n | AC-1570 | AC-1571\n\nYour Work | Remove in-car sensor connector | Remove in-car sensor and ground the number 1 pin of in-car sensor female connector","image":"https://tsrm.sasquatchvc.com/images/mk3/AC/AC_040.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/40","prev":{"page":39,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/39","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/39"},"next":{"page":41,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AC/41","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AC/41"},"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."}