The passenger and driver's electrical door lock switch operates all the door locks except the front passenger door. When I press either "Lock doors" electrical switch, 3 doors lock/unlock except passenger front. The switch is not broken, b/c 3 of the doors work using the electrical switches.

The manual passenger side door lock works fine when you manually push the lock "lever". So, it's not the actuator. It seems the electrical connection is dead in the passenger front door lock. The door lock works but only by using the manual lever.

Does anyone know what might be wrong? Do I need to fix a busted wire inside the passenger door?

 

That's the same problem I had. I need to get around to addressing that. If I figure it out today I'll post back. Thanks for reminding me!