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Home › Buick › 2006 › Lucerne CXS › Repair and Diagnosis › Engine Performance › System › Engine Controls - 4.6L - DTC P0403 To DTC P1381 › DTC P0650 › Circuit/System Verification

Circuit/System Verification

  1. Turn ON the ignition, the MIL should turn ON and OFF when commanded with a scan tool.
  2. Engine running, observe the DTC information with a scan tool. DTC P0650 should not set.
  3. 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 data.
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