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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1147 (Engine Controls And Fuel - 3.6L - DTC P0137 To DTC P0497) >> DTC P0420 or P0430 >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0420 and P0430 are Type A DTCs.

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