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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Entering Self-Diagnostics >> Exiting Self-Diagnostics

Exiting Self-Diagnostics

During self-diagnostic procedures, it is possible to exit service mode without erasing trouble codes. On non-CRT equipped vehicles, exit service mode by depressing BI-LEV button on ECCP or by turning ignition switch to OFF position. On CRT monitor equipped vehicles, exit service mode by touching RTN key on CRT monitor panel or exit by turning ignition switch to OFF position.