Reference Waveform No. 1
NOTE:
The shape of waveform varies with engine coolant temperature.
Waveform at 0 °C (32 °F)
Waveform at 40 °C (104 °F)
Waveform at 80 °C (176 °F)
Waveform at 0 °C (32 °F)
Waveform at 40 °C (104 °F)
Waveform at 80 °C (176 °F)