{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"TGE","section_name":"Troubleshooting 2JZ-GE","page":18,"pages_in_section":105,"title":"Fail–safe Chart","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–398\nENGINE – 2JZ–GE ENGINE TROUBLESHOOTING\n\nFAIL–SAFE CHART\nIf any of the following codes is detected, the ECM enters fail–safe mode.\n\nDTC No. | Fail–Safe Operation | Fail–Safe Deactivation Conditions\n14 | Fuel cut | 1 IGF detected in 3 consecutive ignitions\n16 | Torque control prohibited | Returned to normal condition\n22 | THW is fixed at 80˚C (176˚F) | Returned to normal condition\n24 | THA is fixed at 20˚C (68˚F) | Returned to normal condition\n31 | • Ignition timing fixed at 10˚BTDC\n• Injection time fixed:\n(Starting....9 msec.\n(IDL ON....3.6 msec.\n(IDL OFF....6.7 msec. | KS input 15 times/sec. or more\n35 | Atmospheric pressure is fixed at 101.3 kPa\n(760 mmHg, 29.92 in.Hg) | Returned to normal condition\n41 | VTA1 is fixed at 0˚ | The following must each be repeated at least 2\nTimes consecutively:\n• 0.25 V ⊕ VTA ⊕ 0.95 V\n• IDL: ON\n52 | Max. timing retardation | IG switch OFF\n53 | Max. timing retardation | Returned to normal condition\n55 | Max. timing retardation | IG switch OFF\n\nBack–Up Function\nIf there is trouble with the program in the ECM and the ignition signals (IGT) are not output from the microcomputer, the ECM controls fuel injection and ignition timing at predetermined levels as a back–up function to make it possible to continue to operate the vehicle.\n\nFurthermore, the injection duration is calculated from the starting signal (STA) and the throttle position signal (IDL). Also, the ignition timing is fixed at the initial ignition timing, 10˚BTDC, without relation to the engine speed.\n\nHINT: if the engine is controlled by the back–up function, the malfunction indicator lamp lights up to warn the driver of the malfunction but the diagnostic trouble code is not 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}