if you did not open it up and look or have a shop inspect, how does the vehicle function? Does it run fine at speed but maybe lack power then run really rough when driving slow like in your driveway, or coming to a stop? is there a rattle when you first start up? these codes could simply be a bad sensor, a bad or clogged solenoid which can be replaced without taking anything apart, or just a worn spring on one of the cam phasers. This does require removing the valve cover for that one side, blocking the chain in place so it does not move when you remove the chain from the one cam phaser/sprocket, then one bolt to remove to pull the phaser off of the cam shaft, then slip on the new phaser, replace the bolt, replace the chain, remove the rubber block that holds the chain/timing in place, new valve cover gasket. replace cover and any sensor or actuator you had to remove to do so. Something you could do yourself with a few parts and maybe a kit with a block to hold the chain in place so you do not lose the timing. if you opened it up, do you have any pictures to share? A bad phaser can usually be identified visually by how it is positioned with the engine off, You will have to look up how yours is supposed to be positioned when at 0 when off. if it is not sitting where it is supposed to be that is a clear sign of a bad spring.