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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Control System - 3.5L - DTC P0010 To DTC P0420) >> DTC P0420 >> Repair Verification

Repair Verification

WARNING: This page is about a different variant/trim than selected.
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.
    • If this DTC resets, repeat this procedure.
    • If this DTC does not reset but others do, perform those diagnostics.
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