{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":31,"pages_in_section":80,"title":"Inspection of Wiring Connector Line","section_header":"EFI System — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter","ocr_text":"INSPECTION OF WIRING CONNECTOR LINE\n\nMEASURE RESISTANCE OF ECU\n\nCAUTION:\n1. Do not touch the ECU terminals.\n2. The tester probe should be inserted into the wiring connector from the wiring side.\n\nUsing an ohmmeter, check the resistance between each terminal of the wiring connector.\n• Remove the glove box.\n• Disconnect 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 — 100 Ω\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 opened | 20 — 1,000\nTHA — E₂ | Intake air temperature 20°C (68°F) | 2,000 — 3,000\nG — G⊖ | — | 140 — 180\nNe — G⊖ | — | 140 — 180\nISC₁, ISC₂ ISC₃, ISC₄ | +B | — | 10 — 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}