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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0010 To DTC P0442) >> Diagnostic Information and Procedures >> DTC P0420: Catalyst System Low Efficiency >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The ECM determines that the efficiency of the catalyst has degraded below a calibrated threshold.