The license plate light and reverse lights are not working?

2002 BUICK LESABRE
83,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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KILAMAJARO77
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I have no license plate light nor reverse lights. I've checked all the bulbs, they're good, all the fuses their good. I've checked the wiring harness on the connection from the wiring harness from the fuse box under the seat to the harness to the panel on the truck and I have power to all wires except the green wire coming from the fuse box. I'm lost, I don't know what else to do. Can you help please?
Oct 10, 2024 at 2:49 PM
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STRAILER
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We need to see if we have power at the DMR fuse and to see if the fuse is good, this guide can help. The fuse is in the rear fuse panel.

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

Check out the images (below). Please let us know what happens.
Oct 10, 2024 at 4:07 PM
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KILAMAJARO77
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I'll check back with you guys tomorrow or if you want to reach out through e-mail. Thanks so much.
Oct 10, 2024 at 4:09 PM
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STRAILER
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Sounds good.
Oct 10, 2024 at 4:09 PM
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KILAMAJARO77
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Okay, thanks.
Oct 10, 2024 at 4:19 PM
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KILAMAJARO77
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Morning Guys , any solution on my situation ?
Oct 11, 2024 at 9:22 AM
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STRAILER
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Do we have power at the DMR fuse ?
Oct 11, 2024 at 10:43 AM
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KILAMAJARO77
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What is the DMR fuse and where is it located?
Oct 11, 2024 at 2:55 PM
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STRAILER
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It is int he fuse panel, please revisit my first post. It shows the location.
Oct 13, 2024 at 8:31 AM
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KILAMAJARO77
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Okay, I'll check that fuse but first the Packer game . Thx. I'll let you know what I find out.
Oct 13, 2024 at 10:05 AM
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KILAMAJARO77
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Hi Ken, Sorry for the delay. I had cataract surgery on Monday. Needed a day to recoup. I checked fuse # 14 and it was good. Any suggestions??
Oct 15, 2024 at 2:11 PM
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STRAILER
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Go Packers! No worries, it sounds like the ground is bad, with the running lights on please use a test light to test for power (yellow) and then ground (black). Let's see which one is missing.

These guides can help:

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

and

https://www.2carpros.com/articles/no-tail-lights-exterior-running-lights-tail-lights-out



Please go over these guides and get back to us.
Oct 16, 2024 at 10:22 AM
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KILAMAJARO77
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Hi Ken,

How are you doing? I checked the yellow wire. I have power. I don't have power on the black and green wire, but I have power on the purple wire and the white and black color wire. I'm assuming that black is ground, right? and green is part of the whole circuit along with the other wires for the license plate, reverse, running lights on the trunk panel. so why isn't the green wire hot. I've checked 3 ft from the connection and still nothing.
Oct 21, 2024 at 12:38 PM
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STRAILER
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So is the ground good? Here are the wiring diagrams for the reverse lights and the license please lights as well so you can see how the system works. Simply check the power and ground to see where you lose them. Check out the images (below). Please let us know what happens.
Oct 22, 2024 at 10:10 AM
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KILAMAJARO77
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Hi Ken, so it was the ground connection inside the connection coming from the main harness. it was broken somehow. i made my own and sodered it back on the wire pushed it back in the connection and bamm it worked so thx for the info and time. Norb
Nov 14, 2024 at 1:21 PM
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STRAILER
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Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.
Nov 15, 2024 at 9:25 AM
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KILAMAJARO77
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Your welcome. I will .
Nov 15, 2024 at 11:13 AM