Rear window issue Options

[Kraig72]

I've done a search with no luck so hopefully someone can help me. My rear drivers side window on my 98 Celica vert will only go down, not up. I tested the wiring at the harness and it is sending 12v to one wire when you press up, and 12v to the other when you press down, so the switch doesn't appear to be the problem. I replaced the motor with a new one and still have the same issue. The motor will spin when when I press down, spin in the opposite direction if I reverse the wires, but not spin at all when I press up.

I've heard there is a relay that might impact this. I found a relay under the speaker, but the wires that go to the window motor don't come from this relay. Would this still be the correct relay, or is there one elsewhere that I should be looking for?