UO109 code but truck still runs great

Question

check engine light is on code UO109 comes up lost communication with fuel pump control module but truck still runs great no problems at all

Answer 1

U0109 Loss communication with fuel pump control module

This type of "U" code does not turn the CK ENG LT on. What can set this code is low battery condition, or loss of igntion voltage, What needs to be checked is a "P" code that would set with code condition