Oscilloscope Patterns and Waveforms

Inspection Using An Oscilloscope (Reference)




Generator output voltage signal
PCM terminals
1AA(+) - 2AC(-)

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

Vehicle condition
- Idle after warm up (engine speed approx. 650 rpm, no load, P/S off, A/C off)




Generator field coil control signal
PCM terminals
1AD(+) - 1C(-)

Oscilloscope setting
- 0.5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition
- Idle after warm up (engine speed approx. 650 rpm, no load, P/S off, A/C off)