Taillight and running light not working?

Tiny
ZLATTA2016
  • MEMBER
  • 2018 CADILLAC ESCALADE ESV
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 59,620 MILES
The right taillight and running light not working, but brake like and blinker work.
Friday, July 7th, 2023 AT 7:39 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

The first thing to check is the fuse for the right parking lamps. See pic 1. When you check the fuse, make sure there is power to and from it. Note: Power will only be present when the lights are turned on.

Here is a link you may find helpful:

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

If that is good, then I need you to check for power at the light assembly. There is a green wire to the lamp assembly that powers the parking lamp. See if there is power to it. See pic 2 below.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Try these things and let me know what you find.

Take care,

Joe

Note: If the front right parking lamps work, the fuse isn't the problem so move to the rear lamp wiring testing. Pic 3 shows the fuse location.
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Friday, July 7th, 2023 AT 9:37 PM
Tiny
ZLATTA2016
  • MEMBER
  • 2 POSTS
Thank you. I will check this.
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Saturday, July 8th, 2023 AT 6:04 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

You are very welcome. If you have a chance, let me know what you find. If that isn't the issue, we can move on.

Take care,

Joe
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Saturday, July 8th, 2023 AT 8:34 PM

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