{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":78,"pages_in_section":80,"title":"Measure Resistance of ECU","section_header":"EFI System — Electronic Control System","ocr_text":"2. MEASURE RESISTANCE OF ECU\n\nCAUTION:\n1. Do not touch the ECU terminals.\n2. The tester probe should be inserted into wiring connector from wiring side.\n\nCheck the resistance between each terminal of the wiring connector.\n• Remove the glove box.\n• Unplug the wiring connectors from the ECU.\n• Measure the resistance between each terminal of the wiring connectors.\n\nResistances at ECU Wiring Connectors\n\nTerminals | Condition | Resistance (Ω)\nIDL — E₂ | Throttle valve open | ∞\nIDL — E₂ | Throttle valve fully closed | 0\nVTA — E₂ | Throttle valve fully opened | 3,300 — 10,000\nVTA — E₂ | Throttle valve fully closed | 200 — 800\nVc — E₂ | Disconnect air flow meter connector | 3,000 — 7,000\nVc — E₂ | Disconnect throttle position sensor connector | 200 — 400\nVs — E₂ | Measuring plate fully closed | 20 — 400\nVs — E₂ | Measuring plate fully open | 20 — 1000\nTHA — E₂ | Intake air temperature 20°C (68°F) | 2,000 — 3,000\nG — G⊖ | — | 140 — 180\nNe — G⊖ | — | —\nISC₁, ISC₂ — +B | — | 10 — 30\nISC₃, 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}