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Home >> Cadillac >> 1984 >> Cimarron Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L TBI Tests W/Codes >> Diagnosis >> Code 51, Prom Failure

Code 51, Prom Failure

Check that all pins are fully inserted in the socket. If okay, clear memory and recheck. If CODE 51 resets, replace ECM.

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