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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Manual Operation Of Service Mode >> Status Light Indicators >> Notes

Status Light Indicators: Notes

During self-diagnostics, status light display on ECCP or CRT monitor is used to indicate switchable parameter status. Each parameter status is indicated by its status light being turned on or off. Status light indicators are relative to system level being tested (BCM or ECM). See Figure.