Rear taillight harness issues
05-04-2024, 06:44 PM
#1
Rear taillight harness issues
I have a 2015 gmc Sierra P/U. I noticed water was getting in my rear right tail light. It burned out one bulb. I replaced them all.Problem fixed.
Several months later my tail light wasn't coming on with running lights. I replaced it with a OEM tail light and new harness. I cleaned out the junction box with rags and it (contacts) appeared clean. Connected the new harness. No lights for running but have brake and turn signal. Any ideas?
Several months later my tail light wasn't coming on with running lights. I replaced it with a OEM tail light and new harness. I cleaned out the junction box with rags and it (contacts) appeared clean. Connected the new harness. No lights for running but have brake and turn signal. Any ideas?
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CathedralCub (05-05-2024)
05-05-2024, 05:04 PM
#2
Senior Member
True Car Nut
I would load test the feed line. If your connections are good you have a resistance in the wiring.
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CathedralCub (05-05-2024)
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