Oxygen Sensor

HEATED OXYGEN SENSOR (HO2S) OUTPUT VOLTAGE:
Rich Condition [1] 0.7 - 1.0 Volts
Lean Condition [1] 0.0 - 0.3 Volts

H02S HEATER RESISTANCE
Resistance between terminals 3 and 4 10 - 40 Ohms

[1] with vehicle in closed-loop.