Waveform 4
Knock sensor signal
WAVEFORM 4 REFERENCE CHART
| ECM Terminal Names | Between KNK1 and EKNK, or KNK2 and EKN2 |
| Tester Ranges | 0.01 to 10 V/DIV, 0.01 to 10 msec./DIV |
| Conditions | Engine speed is maintained at 4,000 rpm after engine is warmed up |
HINT:
- The wavelength becomes shorter as the engine rpm increases.
- The waveforms and amplitudes displayed differ slightly depending on the vehicle.