Pcm Code E051, Mem-Cal Error

WARNING: This page is about a different car, the 1992 Cadillac Seville and 1992 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

Ensure MEM-CAL is fully inserted in socket. If MEM-CAL is fully inserted, replace MEM-CAL, clear memory and recheck. If PCM Code E051 reappears, replace PCM.

See cautions under ELECTRONIC CONTROL MODULE (ECM) in N - REMOVE/INSTALL/OHAUL article in this Section & when replacing MEM-CAL or PCM.

Fig 1: PCM Code E051, Schematic, MEM-CAL Error

Courtesy of GENERAL MOTORS CORP.