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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Sunroof System) >> Diagnostic Information and Procedures >> Power Sunroof Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Sunroof Switch

  1. With the ignition OFF, disconnect the harness connector at the sunroof switch.
  2. Test for infinite resistance between the switch terminals listed below and the low reference terminal B with the switch in the open position.
    • Roof open terminal E
    • Roof close terminal D
    • If not the specified value, replace the sunroof switch.
    3. IMPORTANT: If the switch tests open in any switch position other than Off, test the sunroof switch signal circuits for a short to voltage before replacing the switch.
  3. Test for less than 5.0 ohms of resistance between the switch terminals listed below the low reference terminal B with the switch in the appropriate closed position.
    • Roof open terminal E
    • Roof close terminal D
    • If greater than the specified range, replace the sunroof switch.
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