Driver's side rear taillight and signal not working

133,000 MILES • 4.2L • 6 CYL • 2WD • AUTOMATIC
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FRANK SNODGRASS
  • MEMBER
  • 1 POST
Bulb works fine with lights.
Sep 25, 2019 at 9:00 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,604 POSTS
Hello,

There are 4 fuses that run the system that need to be checked first. here is a guide to help test the fuses and the fuse locations well with the turn signal wiring diagrams so you can see how the system works and which fuses to check:

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

If the fuses are good chances are the smart junction box (BCM) will need to be replaced which I have included instructions for as well. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Sep 27, 2019 at 10:45 AM
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