{"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":46,"pages_in_section":126,"title":"EFI System","section_header":"EFI System — Troubleshooting with Volt/Ohmmeter (7M-GE)","ocr_text":"FI-46\n\nEFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)\n\nNo. | Terminals | Trouble | Condition | STD Voltage\n11 | A/C — E1 | No voltage | Air conditioning ON | 10 — 14 V\n\nECU\n\nTo A/C\nAmplifier ←——————————————————————————— A/C\n\n                                                    E1\n                                                    ⏚\n\nFH925\n\n① There is no voltage between ECU terminals A/C and E1.\n   (Air conditioning ON)\n\n① \nECU\n              A/C\nVoltmeter ⏚ ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯\n    V      E1\n\nFH254\n\n② Check that there is voltage between ECU terminal A/C and\n   body ground.\n                                           NO         OK\n③ Check wiring between ECU terminal E1 and body\n   ground.\n                                           OK         BAD\n                                    Try another ECU. | Repair or replace.\n\n②\nECU\n              A/C\nVoltmeter ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯\n    V ⏚\n\nFH254\n\nCheck that there is voltage between | BAD | Repair or replace.\namplifier terminal and body ground.\n                                      OK\nCheck wiring between amplifier and | BAD | Repair or replace.\nECU terminal A/C.\n\n③\n        E1      ECU\nOhmmeter ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯\n    Ω 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}