Hello, At last my mechanic found the solution. The problem in my model, december 2007, is that the back lights function with 2 bulbs, that seems the same light, but you can appreciate a thin line that separate the two parts of the light upper and lower. The upper bulb is a normal 5w, but the lower bulb is 21w, and the ECU sends 5w to work like a back light. When I turn on fog switch, ECU send 21w and works like fog light. The solution is to insert a rele in the fog light, that absorb the 5w signal that send the ECU.