Typical Scan Tool Data

HO2S 1 and 2

Circuit	Short to Ground	Open	Short to Voltage
Operating Conditions: Engine operating in Closed Loop Parameter Normal Range: Fluctuates above and below 350-500 mV
HO2S 1 and 2 Signal	0 mV	400-415 mV	1000 mV
Low Reference	-	400-415 mV	1000 mV