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Home >> Lincoln >> 1990 >> Mark VII LSC >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Tests W/Codes - 5.0L >> Service Code Descriptions >> Notes
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Service Code Descriptions: Notes

There are 3 types of service codes retrieved in the QUICK TEST procedures during Key On Engine Off (KOEO) and Key On Engine Running (KOER) Self-Test modes. They are KOEO, KOER, and Continuous Memory codes. Codes may be cleared from the ECA memory after they have been recorded or repaired. See CLEARING CODES in this article.