This could be a problem with Ground M57 which is located behind left end of dash. I have included a diagram of the ground and the wiring diagram of the power door locks and the power windows circuits in the diagrams down below. Please make sure that the ground is corrosion free, clean, tight, and making good metal to metal contact. Please get back to us with what you are able to find out.
Images (Click to make bigger)
Thursday, May 2nd, 2019 AT 4:13 PM