Operation CHARM: Car repair manuals for everyone.

Oscilloscope Patterns and Waveforms

INSPECTION USING AN OSCILLOSCOPE (REFERENCE)




Generator output voltage signal
PCM terminals
- 2AM (+) - 2AA (-)

Oscilloscope setting
- 2 V/DIV (Y), 2.5 ms/DIV (X), DC range

Vehicle condition
- Idle after warm up (engine speed approx. 650 rpm, no load)