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Mercedes Benz
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1995
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S420
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes
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Retrieving Codes
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Notes
Retrieving Codes: Notes
NOTE:
On LH-SFI vehicles, on/off ratio output is used to diagnose intermittent problems. On LH-SFI vehicles, Diagnostic Trouble Codes (DTCs) are used to diagnose hard failures.