{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":64,"pages_in_section":126,"title":"EFI System","section_header":"EFI System — Troubleshooting with Volt/Ohmmeter (7M-GTE)","ocr_text":"FI-64     EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)\n\nNo. | Terminals | Trouble | Condition | STD Voltage\n9 | IGDA — E1 | No voltage | Idling | 1 — 3 V\nIGDB\n\n[CIRCUIT DIAGRAM showing:\n- ECU\n- Fusible Link\n- AM2 (30A)\n- AM2\n- MAIN 2.0L\n- Fusible Link\n- Battery\n- IG2\n- Ignition Switch\n- Igniter\n- To Tachometer\n- IGDA\n- IGDB\n- E1\nFD343]\n\n[DIAGRAM 1 showing ECU with voltmeter connected to IGDA, E1, and IGDB terminals]\nFD372b\n\n1. There is no voltage between ECU terminals IGDA or IGDB and E1. (Idling)\n\n2. Check that there is voltage between ECU terminal IGDA or IGDB and body ground. (Idling)\n\nNO | OK\n\n3. Check wiring between ECU terminal E1 and body ground. BAD → Repair or replace.\n\nOK\n\nTry another ECU\n\nCheck fusible links and ignition switch. BAD → Repair or replace.\n\nOK\n\nCheck cam position sensor. BAD → Repair or replace.\n\nOK\n\nCheck wiring between ECU and battery. BAD → Repair or replace.\n\nOK\n\nCheck igniter. BAD → Repair or replace.\n\n[DIAGRAM 2 showing ECU with voltmeter connected to IGDA, IGDB and ground]\nFD372a\n\n[DIAGRAM 3 showing Ohmmeter connected to E1 and ground]\nFD375a","image":"https://tsrm.sasquatchvc.com/images/mk3/FI/FI_064.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/64","prev":{"page":63,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/63","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/63"},"next":{"page":65,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI/65","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/65"},"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FI","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/42","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/43","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/44","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/45","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/46","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/47","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/48","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/49","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/50","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/51","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/52","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/53","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/54","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/55","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/56","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/57","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/58","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/59","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/60","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/61","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/62","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/63","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/64","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/65","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/66","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/67","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/68","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/69","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/70","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/71","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/72","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/73","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/74","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/75","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/76","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/77","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/78","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/79","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/80","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FI/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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}