TSRM/MK4 Supra/Repair Manual
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TGTE/Troubleshooting 2JZ-GTE — Inspection Using Oscilloscope, page 31

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Inspection Using Oscilloscope — MK4 Supra Troubleshooting 2JZ-GTE, page 31
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Page text (OCR transcript)
Reference | INSPECTION USING OSCILLOSCOPE

G, NE Signal Waveforms

5 V/Div.
G1
G2
NE

20 msec./Division (Idling)

FI6519

• During cranking or idling, check waveforms between terminals G1, G2 and G1 ×, G2 ×, NE and NE × of engine control module.

HINT: The correct waveforms are as shown.

OK

NG Replace crankshaft position sensor, camshaft position sensor No.1, No.2.

2 Check for open and short in harness and connector between engine control module and each sensor (See page IN–30).

OK

NG Repair or replace harness or connector.

3 Inspect sensor installation and teeth of timing rotor.

OK

NG Tighten the sensor. Replace timing rotor (Intake camshaft, crankshaft timing pulley).

Check and replace engine control module.