{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"IN","section_name":"Introduction","page":35,"pages_in_section":44,"title":"Introduction","section_header":"Introduction — How to Troubleshoot ECU Controlled Systems","ocr_text":"IN–34\n\nINTRODUCTION  –  HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS\n\n(a)  Continuity Check with Ground\n(1)  Disconnect connectors (A) and (C) and measure the resistance between terminals 1 and 2 of connector\n(A) and body ground.\nIn the case of Fig. 6,\nBetween terminal 1 of connector (A) and body ground → Continuity\nBetween terminal 2 of connector (A) and body ground → No continuity (open)\nTherefore, it is found out that there is a short circuit between terminal 1 of connector (A) and terminal 1 of\nconnector (C).\n\nFig. 6\n\nSensor\nC\n1\n2\nB\n1\n2\nA\n1\n2\nECU\n\nBE4068\n\n(2)  Disconnect connector (B) and measure the resistance between terminal 1 of connector (A) and body\nground, and terminal 1 of connector (B) and body ground.\nBetween terminal 1 of connector (A) and body ground → No continuity (open)\nBetween terminal 1 of connector (B) and body ground → Continuity\nTherefore, it is found out that there is a short circuit between terminal 1 of connector (B) and terminal 1 of\nconnector (C).\n\nFig. 7\n\nSensor\nC\n1\n2\nB\n1\n2\nB\n1\n2\nA\n1\n2\nECU\n\nBE4069","image":"https://tsrm.sasquatchvc.com/images/mk4/IN/IN_035.png","url":"https://tsrm.sasquatchvc.com/mk4/tsrm/IN/35","prev":{"page":34,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/IN/34","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/34"},"next":{"page":36,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/IN/36","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/36"},"section_url":"https://tsrm.sasquatchvc.com/mk4/tsrm/IN","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/1","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/2","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/3","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/4","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/5","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/6","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/7","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/8","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/9","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/10","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/11","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/12","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/13","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/14","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/15","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/16","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/17","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/18","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/19","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/20","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/21","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/22","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/23","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/24","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/25","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/26","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/27","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/28","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/29","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/30","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/31","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/32","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/33","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/34","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/35","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/36","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/37","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/38","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/39","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/40","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/41","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/42","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/43","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/IN/44"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}