Page text (OCR transcript)
EG-521
ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING
4 Check voltage between terminal IGT (1 ~ 6) of engine control module connector and body ground.
START
SST
ECM
(B) 57, 56, 55, 54
53, 52
IGT1, IGT2, IGT3, IGT4, IGT5, IGT6
B56853
FI5948
P Connect SST (check harness "A").
(See page EG-510)
SST 09990-01000
C Measure voltage between terminal IGT (1 ~ 6) 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
IGT1, IGF Signal Waveforms
2 V/Div.
IGT1
0
IGF
0
20 msec./Division (Idling)
FI6962
• During idling, check waveforms between terminals IGT1, IGF and E1 of engine control module.
HINT: The correct rectangular waveforms are as shown, IGT2, IGT3, IGT4, IGT5 and IGT6 signal waveforms are same as IGT1 signal waveform.
OK NG Go to step 8 .
5 Check voltage between terminal 2 of igniter connector (I2) and body ground.
ON and START
BE8853
FI5960
P Disconnect igniter connector.
C Measure voltage between terminal 2 of igniter connector (I2) and body ground, when ignition switch is turned to "ON" and and "START" position.
OK Voltage: 9 — 14 V
OK NG Check and repair igniter power source circuit.
