Engine Speed Sensor: Testing and Inspection
Inspection Using An Oscilloscope (Reference)
Engine speed signal
- PCM terminal: 3O (+) <-> 4A (-)
- Oscilloscope setting: 2.0 V/DIV (Y), 20 ms/DIV (X), DC range
- Vehicle condition: Idling
Engine speed signal
- PCM terminal: 3O (+) <-> 4A (-)
- Oscilloscope setting: 2.0 V/DIV (Y), 20 ms/DIV (X), DC range
- Vehicle condition: Idling