Operation CHARM: Car repair manuals for everyone.

Oscilloscope Patterns and Waveforms

IGT1, IGT2, IGT3, IGT4 control signals




- PCM terminals
- IGT1 (No.1): 2BE (+)-body ground (-)
- IGT2 (No.2): 2BF (+)-body ground (-)
- IGT3 (No.3): 2BG (+)-body ground (-)
- IGT4 (No.4): 2BH (+)-body ground (-)

- Oscilloscope setting: 10 V/DIV (Y), 25 minutes/DIV (X), DC range
- Vehicle condition: Idle after warm up (engine speed approx. 650 rpm, no load)