Toyota Repair: serpentine belt, serpentine belt, pulleys

Question
I would like to know how to change the serpentine belt in my 04 corolla. Any pointers would be greatly appreciated.  Thanks,  Edward

Answer
Before removing the old belt draw a diagram how the belt is routed over all the pulleys, depress the tensioner using a 19mm socket and a bar, do not loosen the 17mm bolt, move the tensioner, it's spring loaded, with the tensiner released the belt can be pulled off.