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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 513 (Engine Controls/Fuel - Hybrid (LZ1) - DTC P0010 To DTC P0341) >> Diagnostic Information and Procedures >> DTC P0300-P0308 >> Repair Verification

Repair Verification

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install any components that have been removed or replaced during diagnosis.
  2. Clear the DTCs.
  3. Turn OFF the ignition for 60 s.
  4. If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to the Diagnostic Trouble Code (DTC) List - Vehicle and perform the appropriate diagnostic procedure.
  5. Engine idling, observe the Misfire Current Cyl. 1-8 Counter parameters with a scan tool. The misfire current counter parameters should not be incrementing.
    • If the misfire current counter parameters are incrementing, a misfire still exists.
  6. To verify that the performance of the catalytic converter has not been affected by the condition that set this DTC, perform the Repair Verification for DTC P0420 or P0430. Refer to DTC P0420 or P0430 .
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