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Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 1.5L (LYX) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0117, P0118, or P0119 >> Diagnostic Aids

Diagnostic Aids

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After starting the engine, the ECT sensor parameter value should rise steadily and then stabilize after the thermostat opens.

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