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What could be wrong with the Third Brake Light on a 2002 Chevy Blazer I checked it and it is receving power.?
Wiki User
∙ 15y ago
If your blazer has a LED 3rd brake light and does not work with power at the connector, the brake light is defective and is not serviceable. Had the same problem with my 2002 Blazer. Ohming out plug showed third light bad. Pulled the grommet where the wires go thru car frame and noticed the wires "stretch" which means a break in the wires where they go into the rubber grommet. The wires are too tight in the grommet so I sliced half way thu the rubber to reveal the black and yellow wires. pulled enough wire thru to splice and solder. I stagered the cut, spliced the wires, soldered and used silicone rubber to cover the wires. dried 24 hours then put the rubber grommet back into the hole. works fine. Seems that the opening and closing of the back hatch weakens the wires. Hope this helps. Ron
Wiki User
∙ 15y ago
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