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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 353 (Engine Controls And Fuel - 2.5L (LCV) - DTC P0010 To DTC P0366) >> Diagnostic Information and Procedures >> DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature >> Typical Scan Tool Data

Typical Scan Tool Data

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
ECT Sensor

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  The ignition is ON, or the engine is running
Parameter Normal Range:  Varies with ambient temperature, within a range of -39 to 149°C (-38 to 300°F)
ECT Sensor Signal 150°C (302°F) -40°C (-40°F) -40°C (-40°F)
Low Reference - -40°C (-40°F) -40°C (-40°F)