rear window wiper

I have a 2000 3.2. I was driving down the highway in the rain and hit the rear wiper button. I saw it wipe the first time and then nothing for a long time. so I would hit it again to clear the window. Not I have nothing . I push the button and no wiper. I replace the front relay about 6 months back because the wipers would stop halfway in my window. I have check the fuse and it is good. Could it be the motor or another relay. any help would be great.

its the other relay.

My fronts went first and then 6 months later the rears went wacky too. 6 months later i odered a new board from St. Charles and installed and all is well!