Two problems related to tail light switch have been reported for the 2005 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Focus based on all problems reported for the 2005 Focus.
Motor mounts are bad and makes the engine rattle and vibrate tail light will not work I've changed fuse bulb and sockets still nothing and driver seat belt gets stuck.
I purchased a used 2005 Ford Focus zxw wagon. I love the vehicle, as it gets good mileage, & has ample space, but I ran into a problem with this vehicle as my left tail light went out on me. Upon taking out the rear light assembly, and trying to replace the light bulb, I had the hardest time taking out the light socket out of the light assembly to change the bulb. Upon finally getting the light socket out, I find the tail light assembly where the light socket holds the bulb had melted, & deformed the hole of the tail light assembly. What a terrible design! from there, I decided to take out the right side tail light and check to see if the right side tail lens is toast too. . . . . . . . Sure enough, the right side tail light assembly had melted too, but lucky for me it still works. Ford should honor a recall for this problem, as I've read numerous forums about the tail lights melting on the Ford Focus wagons.