P1EFC

DTC P1EFC, sometimes indicated as P1EFC00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing p1efc.

DTC Trouble Code Search

Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

PIC5988 - ELECTRICAL SYSTEM
CADILLAC: This preliminary information communication provides information to the technician about vehicle that may have the following diagnostic trouble codes U0401, U0140, P15F6, P1E00, U0100, P0562, P1553, P0AC4, C0110, C0898, P1EFC, P257F, P150D,