Operation CHARM: Car repair manuals for everyone.

Oscilloscope Patterns and Waveforms

INSPECTION USING AN OSCILLOSCOPE (REFERENCE)




Shift Solenoid A signal
PCM Terminals
- 1B (+) - Negative battery terminal (-)

Oscilloscope setting
- 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition
- 4GR




Shift solenoid B signal
PCM terminals
- 1C (+) - Negative battery terminal (-)

Oscilloscope setting
- 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition
- 1GR




Shift solenoid C signal
PCM terminals
- 1 D (+) - Negative battery terminal (-)

Oscilloscope setting
- 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition
- 1GR or 2GR