Hey guys, I have no dim headlights in my 2001 Blazer. Brights work fine, as well as everything else electrical. The DRL are working fine as well, and the light sensor that switches over at night is working fine, just not the darn lights. I checked the fuse in the fusebox, replaced both relays (Headlamp and DRL), tried another light switch (couldn't get a new one because of holiday), then I broke out the test light. It appears that I am getting power to the lights, so I assume the dimmer and headlight switches are OK. Is this a good assumption? Also, can anyone tell me where the ground wire comes from the headlights, and where it is atttached to the body? It's buried down in there pretty good.

Also, if anyone knows of a TSB on this, or where to find TSB's in general, the info would be appreciated.

 

There's a link for TSB's at the top of the page.