{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"TGTE","section_name":"Troubleshooting 2JZ-GTE","page":8,"pages_in_section":113,"title":"Diagnostic Trouble Code Chart","section_header":"Engine — 2JZ-GTE Engine Troubleshooting","ocr_text":"EG-494\nENGINE – 2JZ-GTE ENGINE TROUBLESHOOTING\n\nDIAGNOSTIC TROUBLE CODE CHART\nHINT: Parameters listed in the chart may not be exactly the same as your reading due to type of the instruments or other factors.\n\nDTC No. | Number of MIL Blinks | Circuit | Diagnostic Trouble Code Detecting Condition\n\n– | [waveform] BE3931 | Normal | No code is recorded\n\n12 | [waveform] BE3931 | G, NE Signal (No.1) | No \"NE\" or \"G1\" and \"G2\" signal to ECM for 2 sec. or more after cranking\n\n13 | [waveform] BE3931 | G, NE Signal (No.2) | No NE signal to ECM for 0.1 sec. or more at 1,000 rpm or more\nNE signal does not pulse 12 times to ECM during the interval between G1 and G2 pulses\nDeviation in G (G1, G2) and NE signal continues for 3 sec. during idling (throttle fully closed) after engine warmed up\n\n14 | [waveform] BE3931 | Ignition Signal | No IGF signal to ECM for 4–7 consecutive IGT signals with engine speed less than 3,000 rpm\n\n16 | [waveform] BE3931 | A/T Control Signal | Fault in communications between the engine CPU and A/T CPU in the 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}