{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"AB","section_name":"SRS Airbag","page":77,"pages_in_section":90,"title":"Tc Terminal Circuit","section_header":"SRS Airbag — Troubleshooting","ocr_text":"Tc Terminal Circuit\n\nCIRCUIT DESCRIPTION\n\nBy connecting terminals Tc and E1 of the check connector, the center airbag sensor assembly is set in the diagnostic code output mode. The diagnostic codes are displayed by the blinking of the airbag warning light.\n\nDIAGNOSTIC CHART\n\nTroubleshooting for this system is different depending on whether the diagnostic code is not displayed or is continuously displayed. Confirm the problem symptoms first before selecting the appropriate troubleshooting procedure.\n\nHINT: If the diagnostic code is not displayed, perform the following troubleshooting:\n\n1\nCheck voltage between terminals Tc and E1 of check connector.\nOK → Go to step 3\nNG ↓\n\n2\nCheck voltage between terminal Tc of check connector and body ground.\nOK → Check voltage between terminal E1 of check connector and body ground.\nNG ↓\n\n3\nCheck center airbag sensor assembly.\nOK → Check harness between center airbag sensor assembly and check connector.\nNG ↓\n\nReplace center airbag sensor assembly.\n\nHINT: If the diagnostic code is continuously displayed, perform the following troubleshooting:\n\n1\nCheck resistance between terminal Tc of center airbag sensor assembly and body ground.\nOK → Replace center airbag sensor assembly.\nNG ↓\n\nRepair or replace harness or connector.","image":"https://tsrm.sasquatchvc.com/images/mk3/AB/AB_077.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AB/77","prev":{"page":76,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AB/76","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/76"},"next":{"page":78,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AB/78","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/78"},"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/AB","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/42","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/43","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/44","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/45","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/46","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/47","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/48","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/49","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/50","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/51","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/52","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/53","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/54","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/55","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/56","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/57","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/58","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/59","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/60","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/61","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/62","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/63","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/64","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/65","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/66","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/67","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/68","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/69","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/70","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/71","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/72","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/73","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/74","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/75","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/76","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/77","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/78","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/79","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/80","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/81","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/82","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/83","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/84","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/85","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/86","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/87","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/88","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/89","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/AB/90"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}