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1997
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Riviera V6-3.8L SC VIN 1
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Reading and Clearing Diagnostic Trouble Codes
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Displaying & Reading Trouble Codes
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With Scan Tool
With Scan Tool
The only way to display diagnostic trouble codes (DTCs) is by using a scan tool. Follow the scan tool manufacturers directions.