{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Electrical Wiring Diagram","section":"S21","section_name":"ECT System","page":1,"pages_in_section":4,"title":"ECT System","section_header":"ECT System","ocr_text":"21 ECT ECT SYSTEM\n\n15A ECU IG | 20A STOP | 15A RADIO NO.1 | 7.5A GAUGE\n\n1 IG | 11 H | 5 2D\n\nH- | -H | -Y | >- | >-\n\n9 7 A STOP LIGHT S/W | 14 1B\n\n3\n\n-H | -B\n\nTO STOP LIGHT I\n\nG-W\n\n24 | 22 | 23\nIG | BK | +B\n\nL | B | N\n\n© ECT ECU\n\nL1 L2 L3 O/D1 IDL S1 S2 SL SP2 GND\n4 | 3 | 2 | 17 | 1 | 12 | 11 | 10 | 15 | 18\n\nY-L | G-B | G-Y | R-L | R-G\n\nB | R | H-W | R-Y | R-Y | G-Y\n\n4 B1 | 3 B1 | 2 B1 | 6 B2\n\nB | R | H-W | R-Y\n\n23 | 22 | 21 | 17\nL1 | L2 | L3 | ECT\n\nE TCCS ECU\n\nTHROTTLE POSITION SENSOR ©\n\nTO CRUISE CONTROL COMPUTER\n\n13 D2\n\nY-L\n\n3\nIDL\n\n8 B2 | 5 B2 | 9 B2 | 2 B2 | 11 B2\n\nG-B | G-Y | R-L | R-G | L-T\n\n3 G | 2 G | 1 G | 8 G | 2 T\n\nNO.1 NO.2 NO.3\n\nECT SOLENOID\n\nT/M SPEED SENSOR (W/ A.B.S.) (W/O A.B.S.)\n\n9 LW\n\n2 LF\n\n2 E3\n\n>-\n\n2 M | Y\n\nB A/T INDICATOR S/M\n\nL | 3 | 4 | 1\n\n7 B2 | 1 B2 | 11 B1\n\nT | G | N\n\n20 | 21 | 7\n\n14 3B\n\nJ/B NO.3\n\nC PATTERN SELECT S/M\n\nY | 2\n\nNORM 4 | A-G\nPWR 5 | G-O\n\n17 A.B.S. COMPUTER\n\n15 | 1 | 2 | 10\nECT | BRAK | TSEN | BK\n\nL-T | B | H-B | Y | BR\n\n5 B2 | 3 T | 12 B2 | 4 B2 | 3 D1\n\nB | H-B | Y | BR\n\n3 T | 1 T | 4 T\n\nA/B NO.4 SET BOLT","image":"https://tsrm.sasquatchvc.com/images/mk3-ewd/S21/S21_001.png","url":"https://tsrm.sasquatchvc.com/mk3/ewd/S21/1","prev":null,"next":{"page":2,"url":"https://tsrm.sasquatchvc.com/mk3/ewd/S21/2","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/ewd/S21/2"},"section_url":"https://tsrm.sasquatchvc.com/mk3/ewd/S21","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/ewd/S21/1","https://tsrm.sasquatchvc.com/api/pages/mk3/ewd/S21/2","https://tsrm.sasquatchvc.com/api/pages/mk3/ewd/S21/3","https://tsrm.sasquatchvc.com/api/pages/mk3/ewd/S21/4"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}