{"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":39,"pages_in_section":126,"title":"EFI System","section_header":"EFI System — Troubleshooting with Volt/Ohmmeter (7M-GE)","ocr_text":"EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)     FI-39\n\nNo. | Terminals | Trouble | Condition | STD Voltage\n4 | No. 10    E01\n    No. 20    —\n    No. 30    E02 | No voltage | Ignition switch ON | 10 ~ 14 V\n\n[CIRCUIT DIAGRAM showing Ignition Switch, ECU (IG SW), Fuse (IGN 7.5A), AM2 (IG2), AM2 30A (Fusible Link), MAIN 2.0L with 6 Injectors, Battery, and connections to terminals No. 10, No. 20, No. 30, E01, E02]\n\n[DIAGRAM 1: Voltmeter connection showing No. 10, No. 30, ECU with E01, E02 terminals] FI1633\n\n1. There is no voltage between ECU terminal No. 10, No. 20 and/or No. 30 and E01 and/or E02. (IG SW ON)\n\n2. Check that there is voltage between ECU terminal No. 10, No. 20 or No. 30 and body ground.\n\nNO → OK\n\nCheck wiring between ECU terminal E01 and/or E02 and body ground.\n\nOK → BAD\nTry another ECU. → Repair or replace.\n\nCheck fusible links and ignition switch. → BAD → Repair or replace.\n\nOK ↓\n\n3. Check resistance of each injector.\nSTD resistance: Approx. 13.8 Ω\n\nOK → BAD\n      Replace injector.\n\nCheck wiring between ECU terminal No. 10, No. 20 and/or No. 30 and battery. → BAD → Repair or replace.\n\n[DIAGRAM 2: Voltmeter connection showing No. 20, No. 10, No. 30, ECU with E02 terminal] FI3875\n\n[DIAGRAM 3: Ohmmeter connection at injector] 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}