EG-417 ENGINE — 2JZ-GE ENGINE TROUBLESHOOTING 8 Disconnect igniter connector and check voltage between terminal IGT of engine control module connector and body ground. START SST ECM B 57 IGT BE8853 FI6614 P Disconnect igniter connector. C Measure voltage between terminal IGT of engine control module connector and body ground when engine is cranked. OK Voltage: 0.5 — 1.0 V (Neither 0 V nor 5 V) Reference INSPECTION USING OSCILLOSCOPE IGT Signal Waveform IGT 2 V/Div. 0 V IGF 0 V 5 msec./Division (Idling) FI6605 • During cranking or idling, check waveforms between terminal IGT and E1 of engine control module. HINT: The correct rectangular waveforms are as shown. NG OK Replace igniter. 9 Check for open and short in harness and connector in IGT signal circuit between engine control module and igniter (See page IN-30). OK NG Repair or replace harness or connector. Check and replace engine control module.