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Buick
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2001
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Park Avenue Ultra V6-3.8L SC VIN 1
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Repair and Diagnosis
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Body and Frame
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Roof and Associated Components
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Sunroof / Moonroof
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Power Sunroof Does Not Close
Power Sunroof Does Not Close
Steps 1-9:
Steps 10-13:
2.
If the system does close properly, then suspect either the sunroof limit switch soft stop signal circuit or the sunroof limit switch low reference circuit for a poor connection or intermittent