Ignition Timing System Diagnosis & Component Tests_TESTS_CMD
Ignition Timing: Oscilloscope Patterns and Waveforms
IGT1, IGT2, IGT3, IGT4 control signals
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PCM terminals
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IGT1 (No.1): 2BE (+)-body ground (-)
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IGT2 (No.2): 2BF (+)-body ground (-)
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IGT3 (No.3): 2BG (+)-body ground (-)
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IGT4 (No.4): 2BH (+)-body ground (-)
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Oscilloscope setting: 10 V/DIV (Y), 25 minutes/DIV (X), DC range
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Vehicle condition: Idle after warm up (engine speed approx. 650 rpm, no load)