My high brakelight wont work. The other brakelights work fine. Is there any tips on how to find an electric diagram for the 98 blazer on the web? I have looked here in the forum but cant seem to find any diagrams?
Thanks!!

 

couldn't put my hands on a wiring diagram - this is the best I can do for you

 

When mine quit working I found out that one of the wires had broken where it flexs when you open the glass. I took it off found where it was broken and soldered it and used heat shrink to seal it. Has worked for the last couple of years now.

 

What do you need a diagram for? Unplug it and use a test light to see if you have power when the brakes are applied. If you do, then the problem is with the light itself. Pretty common. There is a resistor inside that likes to blow.

 

This is what happend to me as well!
I just changed the entire wire and soldered it to the brakelight. Works fine now.
Thanks for all the answers!