i'm not sure how much info I need to include that's pertinent to my problem but, I will try to condense. I was working on my '02 Silvy (replacing the overflow tank) I used the headlights after dark for the last 2 nuts of the air breather box. The next morning I got pulled over for no DRIVER'S side headlight! THANKFULLY the LEO simply said to get it fixed with NO ticket. (side note: I've had the truck for bout 5 years and NEVER got fWONkin pulled over. and for that? I was PISSED! I take pride in making sure ALL my lights are functional. Even if it wasn't a law it's my pet peeve!! and for hime to "wast" his time on me when I should have realized it swapped it out for the standard I have in reserve and MAYBE be a few minutes late for work ) I have HIDs and had put in the replacement bulbs/ballasts a week before no problems. I figured it was it gone out (NOT satisfied with the price OR company but, I digress) Turns out BOTH driver's side was out. I checked the fuse (and swapped with PS nothing I swapped relays (I think 3154? IIRC) anyway there's 3 of the same under there. NOTHING! Is there another fuse/relay I overlooked? I have a less then 2 year old headlight/dimmer switch assembly but, I don't want to replace it before I run out the other possibilities and was thinking BOTH would be out from that, Any other thoughts. Thanks in advance.