EG–388 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING DIAGNOSTIC TROUBLE CODE CHART HINT: Parameters listed in the chart may not be exactly the same as your reading due to type of the instruments or other factors. DTC No. | Number of MIL Blinks | Circuit | Diagnostic Trouble Code Detecting Condition – | BE3931 | Normal | No code is recorded. 12 | BE3931 | G, NE Signal (No.1) | No NE or G1 and G2 signal to ECM for 2 sec. or more after cranking Open in "G ⊕" circuit 13 | BE3931 | G, NE Signal (No.2) | No NE signal to ECM for 0.1 sec. or more at 1,000 rpm or more NE signal does not pulse 12 times to ECM during the interval between G1 and G2 pulses 14 | BE3931 | Ignition Signal | No IGF signal to ECM for 6 consecutive IGT signals 16 | BE3931 | A/T Control Signal | Fault in communications between the engine CPU and A/T CPU in the ECM 21 | 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 (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): (2 trip detection logic)*4 (a) Engine coolant temp.: Between 80°C (176°F) and 95°C (203°F) (b) Engine speed: 1,500 rpm or more (c) Load driving (example A/T in in Overdrive, (5th for M/T), A/C ON, Flat road, 80 km/H (50 mph)) (d) (Main heated*3) oxygen sensor (Fr) signal voltage: Alternating above and below 0.45 V *3, 4: See page EG–396, 397.