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Home >> Pontiac >> 1997 >> Firebird Formula, 2D Convertible, Automatic >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnosis & Repair >> DTC 12, Begin Diagnostic Display >> Notes

DTC 12, Begin Diagnostic Display: Notes

DTC 12 is always displayed as the first code, indicating the diagnostic display is in progress. If DTCs do not display, go to TESTING.

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