DTC P0440: Evaporative Emission Control System: Notes
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.
NOTE:
If DTC P0441, P0446 or P0450 is output after DTC P0440, perform appropriate test first before performing DTC P0440 test.