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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0121 LF4 To DTC P0685 LF4) >> Diagnostic Information and Procedures >> DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature (LGX) >> Typical Scan Tool Data

Typical Scan Tool Data

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
HO2S Sensor 1 Voltage, HO2S Sensor 2 Voltage

Circuit Short to Ground Open Short to Voltage
Parameter Normal Range:  200-800 mV
HO2S High Signal 0.00 V Approximately 1.9 V Approximately 1.9 V
HO2S Low Signal 0.00 V Approximately 1.9 V Approximately 1.9 V
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