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Home >> Mercedes Benz >> 1994 >> S320 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Retrieving Codes >> LH-SFI >> Notes
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Retrieving Codes: LH-SFI: Notes

NOTE: Before using Diagnostic Trouble Codes (DTCs) to diagnose vehicle, LH-SFI control unit must first be allowed to display on/off ratio through On/Off Ratio Tester (909 589 00 21 00).
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