Brake lights, tail lights and running lights are not working

2006 BUICK RANIER
140,000 MILES
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JANDJBRAUN
  • MEMBER
  • 1 POST
The brake lights, tail lights and running lights do not work.
Apr 19, 2019 at 5:32 PM
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SCGRANTURISMO
  • ASE Certified Mechanic
  • 4,897 POSTS
  • ASE Certified Mechanic
Hello,

Okay, let's start with some basics and check to see if you are getting battery voltage back at the taillights. You will need touse a multi meter to do this, so I have included a link for you to go to down below if you are unfamiliar with how to use one.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

In the diagrams down below I have provided you with the wiring diagrams for the taillight circuits. I have highlighted six wire that you will need to measure the voltage at With the headlamp switch in the on position. Red lead goes to the wire and the black lead goes to a known good ground location. Measure each wire and record your answer. Please get back to us with what you are able to find out on each reading please. We can go from there.

Thanks,
Alex
2CarPros
Apr 19, 2019 at 10:39 PM
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