power door locks

My power locks quit working...partially. I can lock the doors using the button but they won't unlock. Before the unlock feature fully died it would act up and require me to lock them and then hit unlock again for them to unlock. I can unlock them manually by moving the thing by hand but its so much more convenievt to use the power function when I have to unlock my door, my wife's, the back door for the baby and then the hatch for the baby's stroller...anyone have ideas?

I think there's a couple threads on this issue, it has to do with the resistance in the wires building up you should search for power door fix