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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - DTC P0324 To DTC P0446 >> DTC P0650 >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, command the MIL ON and OFF with a scan tool. The MIL should turn ON and OFF as commanded.
  2. Command the MIL ON and OFF with a scan tool while observing the following control circuit status parameters:
    • MIL Ckt. Short Gnd Test Status
    • MIL Ckt. Open Test Status
    • MIL Ckt. Short Volts Test Status

      Each parameter should change from OK and Not Run or from Not Run and OK.

  3. Operate the vehicle within the Conditions for Running the DTC to verify that the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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