having a truck serial number would help make this accessment more accurate but based on a general code chart for this model code 49=
wire breakage in pump motor, faulty CS3 current sensor, faulty logic card.
check all wiring to the pump motor circuits and check the current sensor first, faulty logic card is last resort if nothing else is found and is usually rare.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.