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Home >> Oldsmobile >> 1990 >> Toronado Base, 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - ECM >> Manual Operation Of Service Mode >> Data Display Code >> FOR CRT Control CODE:

FOR CRT Control CODE:

CD99 CRTC PROM I.D. (PROM ID) displayed as number up to four digits long, which can be used to verify that proper PROM was installed in the CRT monitor.

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