{"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":8,"pages_in_section":105,"title":"Diagnostic Trouble Code Chart","section_header":"Engine — 2JZ-GE Engine Troubleshooting","ocr_text":"EG–388\n\nENGINE – 2JZ–GE ENGINE TROUBLESHOOTING\n\nDIAGNOSTIC TROUBLE CODE CHART\n\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– | BE3931 | Normal | No code is recorded.\n\n12 | BE3931 | G, NE Signal (No.1) | No NE or G1 and G2 signal to ECM for 2 sec. or more after cranking\nOpen in \"G ⊕\" circuit\n\n13 | 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\n\n14 | BE3931 | Ignition Signal | No IGF signal to ECM for 6 consecutive IGT signals\n\n16 | BE3931 | A/T Control Signal | Fault in communications between the engine CPU and A/T CPU in the ECM\n\n21 | BE3932 | (Main heated *3) Oxygen Sensor Signal (Fr) | (1)*3 Open or short in heater circuit of main heated oxygen sensor (Fr) for 0.5 sec. or more\n(2) (Main heated*3) oxygen sensor (Fr) signal voltage is reduced to between 0.35 V and 0.70 V for 90 sec. under conditions (a) – (d):\n(2 trip detection logic)*4\n(a) Engine coolant temp.: Between 80°C (176°F) and 95°C (203°F)\n(b) Engine speed: 1,500 rpm or more\n(c) Load driving (example A/T in in Overdrive, (5th for M/T), A/C ON, Flat road, 80 km/H (50 mph))\n(d) (Main heated*3) oxygen sensor (Fr) signal voltage: Alternating above and below 0.45 V\n\n*3, 4: See page EG–396, 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