Operation CHARM
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Oldsmobile
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1994
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Eighty-Eight Royale FWD V6-3800 3.8L
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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 TECH 1. There are no provisions for "ON-BOARD" diagnostics.