{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"BE","section_name":"Body Electrical System","page":71,"pages_in_section":116,"title":"Inspection of speed sensor circuit.","section_header":"Body Electrical System — Cruise Control System","ocr_text":"E    Inspection of speed sensor circuit.\n\nSPEEDOMETER CABLE\n\nINSPECT SPEEDOMETER CABLE\nDoes the meter fluctuate when driving at a\nsteady speed?\n\nYes → Meter cable faulty.\n\nNo ↓\n\nTurn ignition switch off.\n\nSPEED SENSOR\n\nINSPECT GROUND CONNECTION\nDisconnect connector from meter (speed\nsensor).\nIs there continuity between terminal 5 of wire\nharness side connector and body ground?\n\nNo → Open circuit in wire harness between\nterminal 5 and body ground.\n\nYes ↓\n\nINSPECT SPEED SENSOR OPERATION\nIs speed sensor operation normal?\n(See page BE-84)\n\nNo → Speed sensor faulty.\n\nYes ↓\n\nCOMPUTER\n\nINSPECT SPEED SENSOR CIRCUIT\nDisconnect connector from computer.\nIs there continuity between terminal 6 of wire\nharness side connector and terminal 7 of\ncomputer.\n\nNo → Open circuit in wire harness between\nterminal 6 of speed sensor and terminal\n7 of computer.\n\nYes ↓\n\nReplace 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