I have the same problem. In my case, the fuse is not blowing out, it is the bulb. I've confirmed this with the multimeter. Everytime I replace the bulb, it burns out again after about 1-2 weeks. I've replaced the fuse, but it made no difference. I can't figure out what would make the bulb burn out fast other than battery overvoltage, but it doesn't seem likely since I don't have any other electrical issues.
I've had this problem for 2 years now, so any suggestions would be very welcome.
Monday, December 31st, 2012 AT 3:36 PM