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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 305 (Sunroof System) >> Diagnostic Information and Procedures >> Power Sunroof Malfunction >> Circuit/System Verification

Circuit/System Verification

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  1. With the sunroof in the closed position, press the sunroof open switch. The sunroof should open.
    • If the sunroof does not open, refer to Power Sunroof Malfunction below.
  2. With the sunroof in the open position, press the sunroof close switch. The sunroof should close.
    • If the sunroof does not close, refer to Power Sunroof Malfunction below.
  3. With the sunroof in the closed position, operate the sunroof express open feature. The sunroof should fully open.
    • If the express open feature does not function, refer to Power Sunroof Express Feature Malfunction below.
  4. With the sunroof in the open position, operate the sunroof express close feature. The sunroof should fully close.
    • If the express close feature does not function, refer to Power Sunroof Express Feature Malfunction below.
  5. With the sunroof in the closed position, press the sunroof vent open switch. The sunroof should open.
    • If the sunroof does not open, refer to Power Sunroof Malfunction below.
  6. With the sunroof in the open vent position, press the sunroof vent close switch. The sunroof should close.
    • If the sunroof does not close, refer to Power Sunroof Malfunction below.
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