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Home >> Cadillac >> 2010 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System & Fuel System - 5.3L, 6.0L, 6.2L - DTC P1255 To DTC P3449 >> DTC P2271 or P2273 >> Typical Scan Tool Data
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Typical Scan Tool Data

HO2S Sensor 1 Voltage

Circuit Short to Ground Open Short to Voltage
Parameter Normal Range:  200-800 mV
HO2S High Signal 0 mV Approximately 470 mV Approximately 1,100 mV
HO2S Low Signal 455 mV Approximately 450 mV Approximately 445 mV
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