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Home >> Chevrolet >> 1985 >> Pickup C10, 6.2 C, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Diesel CEC Tests W/Codes >> Code 51 - Faulty Prom

Code 51 - Faulty Prom

Check that all pins are fully inserted in the socket.
If OK, replace PROM, and recheck.
If problem not corrected, replace ECM.

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