Oscilloscope Patterns and Waveforms

INSPECTION USING AN OSCILLOSCOPE (REFERENCE)




Input/turbine speed sensor (+) signal
PCM terminals
- 1 M (+) - Negative battery terminal (-)

Oscilloscope setting
- 500 mV/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition
- Idle after warm-up




Input/turbine speed sensor (-) signal
PCM terminals
- 1Q (+) - Negative battery terminal (-)

Oscilloscope setting
- 500 mV/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition
- Idle after warm-up