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Home >> Buick >> 1994 >> LeSabre Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM/Pcm Code Charts >> Code P1623, Prom Error

Code P1623, Prom Error

Check that PROM is correctly inserted in the socket. If okay, replace PROM, clear memory and recheck. If Code P1623 reappears, replace PCM.

NOTE: To prevent possible electrostatic discharge damage to PCM or PROM, DO NOT  touch component leads. DO NOT  remove integrated circuit from carrier.
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