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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Entering Self-Diagnostics >> Exit Self-Diagnostics

Exit Self-Diagnostics

To exit self-diagnostics, depress BI-LEV button on the ECCP or turn ignition switch to OFF position. Trouble codes are not erased when this is done.