DTC P0440 & DTC P0442: Notes

Code Definition

DTC P0440: EVAP System Malfunction
DTC P0442: Evaporative Emission Control System Leak Detected (Small Leak)

CAUTION: If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - IMPORT article in GENERAL INFORMATION.