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Home >> Oldsmobile >> 1995 >> Silhouette >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.8L >> Trouble Code Charts >> Code 1623, Prom Error

Code 1623, Prom Error

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

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