Hello everyone. I purchased my first project car yesterday. A 1993 Del Sol Si with 270k miles. It still runs like a champ and is so much fun. No check engine light either. So all the windows work except for the passenger window. The window lock isn't on and I've tried both window buttons, fuses,and tried a new window power switch button from a older door panel. When I hit the button I hear a switch or click. Would this mean its a relay problem or window motor? What else could it be? Door wiring harness?

Thanks

 

Check whether voltage reaches the lock actuator. If so, the actuator is bad or there's a mechanical issue that impedes the actuator from moving the lock.

If voltage does not reach the lock actuator, check for broken wires in both door jamb connectors.