this is bad news sometimes.
P0741 is sometimes caused by low ATF level (find the leak) or bad ATF (worn out oil) and most of the times caused by a hydraulic leak in the valvebody or a bad torque converter too.
It will take a transmission expert to resolve this for you. Do not think this will be a quick repair because its not. Do not drive at high speed at all with this code as the torque converter clutch isnt locking and the nonlock condition will severely overheat the transmission to its death.
