Left taillight does not work

2002 CHEVROLET TAHOE
187,544 MILES • 6 CYL • 4WD • AUTOMATIC
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CORA MOORE
  • MEMBER
  • 1 POST
Just the top part blinker works reverse light works, but not the two. I've swapped out the housing for a new one still the same problem.
Jan 10, 2022 at 1:08 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

I looked through the wiring schematic for the exterior lights, which I attached below. There is a specific fuse for the left rear taillights.

The first thing we need to check is that. It is located in the under-hood fuse box. If you look at pics 3 and 4, it shows what fuse 33 is responsible for and the location of the fuse in the box.

When you check this fuse, it is important to make sure it is good. Additionally, if the fuse is good, it's really important to check for power to and from it. There is another fuse further up that powers it, but I don't think that is the issue.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
Jan 10, 2022 at 8:11 PM
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