I am a newbie and own a 2004 XC90 T6. The SUV has 87K miles and about a couple of months ago, my ABS/Brake lights came on. I replaced the brake switch but that did not solve the issue. I took it to the dealer and they troubleshot (for free!!!) to discover that my BCM had failed. They wanted $$$ for it and I did not have that kind of money with me at that time. Well, just yesterday, my front headlights (both low and high beam) and rear lights (drive lights and not brake lights) stopped functioning. I had to drive 50miles with my FOGs on! This morning, I checked all the fuses and relays and it seems to be fine. I really do not want to end up at the dealership again (this time it will not be free diagnostic!) unless I absolutely have to. Any help where to start will be appreciated.