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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Diagnostic Information and Procedures >> Cooling Fan Always On >> Repair Verification

Repair Verification

  1. Ignition ON, verify with a scan tool that the ECM is not commanding fan activation.
  2. Ignition ON, observe that the fan is not activated.
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