If your power seat will not move correctly but you can hear the motor running when you press the switch, there is a good chance that a $14 plastic seat motor gear is stripped. You can replace this yourself. See links below to specific sections of the video and replacement part.
2:46 Align the seat before you disconnect power
6:51 Replace the plastic gear
11:18 See what the previous owner left behind
12:30 Reinstall seat
16:09 Reset blinking ABS light after repair
In this third video in my series I will remove the passenger seat from my 2004 Infiniti FX 35 and replace a missing plastic seat gear I was able to buy online for $14. The repair only requires very basic tools. The dealership does not sell this part and will quote you an entire seat to do the same repair.
The part I ordered from Amazon – https://www.amazon.com/gp/product/B082G63YX5
The other videos in my FX35 series – https://www.youtube.com/playlist?list=PLjmzBmjM9udfCC-OnYnUhuIGxeeGGHWH1