Canister Purge Control Valve: Testing and Inspection

Inspection Using An Oscilloscope (Reference)




Purge control signal
PCM terminals
- 4U(+) - 1C(-)

Oscilloscope setting
2 V/DIV (Y), 10 ms/DIV (X), DC range

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