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Home >> Pontiac >> 2010 >> Solstice Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls And Fuel - 2.0L - DTC P000A To DTC P0238) >> DTC P0117, P0118, or P0119 >> Circuit/System Description

Circuit/System Description

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The engine coolant temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. The engine control module (ECM) supplies 5 volts to the ECT sensor signal circuit and a ground for the low reference circuit.