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Home >> Cadillac >> 1990 >> Allante F7/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> ECM DTC EO12: No Distributor Reference Signal >> Failure Conditions
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Failure Conditions

If the ECM does not receive distributor reference pulses for 4 seconds with cam reference pulses being received, Code EO12 will set.

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