{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"FA","section_name":"Front Axle & Suspension","page":42,"pages_in_section":42,"title":"Computer and System Circuit","section_header":"Front Axle and Suspension — Toyota Electronic Modulated Suspension","ocr_text":"Computer and System Circuit\nMEASURE VOLTAGE OR RESISTANCE OF SYSTEM\nUsing a volt/ohmmeter with high impedance (10 kΩ/V mini-\nmum), measure the voltage or resistance at each terminal\nof the wiring connector.\nNOTICE: To prevent damage to the computer, be care-\nful of the volt/ohmmeter range and do not connect it in\nreverse.\n\n[Diagram showing computer connection and connector pinouts with labels: ⊕B, M⊖, SPD, SOL, M⊖, GND, SW·S on left connector; L₃, L₁, SS₁, SS₂, CHK, L₁, STP, SL, ML, FL, V₀ on right connector]\n\nTerminal | Measuring condition | Voltage or Resistance\n\nCHK - GND | Ignition Switch ON | Service Connector Terminals T₃ - E₁ Open: 12 V\n                                  Service Connector Terminals T₃ - E₁ Short: 0 V\n\nSS₁\nSS₂ - GND | Ignition Switch ON and turn slowly steering wheel. | 5→0→5→0 V\n\nL₁ - GND | 1. Ignition Switch ON | 5→0 V\nL₁ - GND | 2. Depress the accelerator pedal. | 5→0 V\nL₃ - GND |                         | 5→0→5→0 V\nV₀ - GND | Ignition Switch ON | 3.5→4.2 V\n\nSL\nML - GND | Ignition Switch ON | 12 V (2 seconds)\nFL\n\nSTP - GND | Brake Pedal | Depress: 12 V\n                          Not depress: 0 V\n\nSPD - GND | Engine running, vehicle moving | 6 V\n\nM⊖ - GND | Ignition Switch ON and Mode Select Switch at Normal→Sport (Motor operating) | Momentarily over 8 V\n\n⊕B - GND | Ignition Switch ON | 12 V\nSW·S - GND | Ignition Switch ON and Mode Select Switch at Sport | Above 8 V\n\nGND | Body earth | 0 Ω\n\nM⊖ - GND | Ignition Switch ON and Mode Select Switch at Sport→Normal (Motor operating) | Momentarily over 8 V\n\nSOL - GND | Ignition Switch ON, Service Connector Terminals T₃ - E₁ Short Circuit and Mode Select Switch at Sport | 12 V","image":"https://tsrm.sasquatchvc.com/images/mk3/FA/FA_042.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FA/42","prev":{"page":41,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FA/41","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/41"},"next":null,"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/FA","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/FA/42"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}