Troubleshooting Trailer Interior Lights Not Functioning on Horse Trailer
Question:
everything works but the interior lights, they use to work but do not anymore. This is on a horse trailer and it has interior lights in the tack room and in the horse area, I have a hard time believing all the bulbs are bad. Is there a fuse somewhere i need to look at or is there a way to trace it from the trailer forward? The running lights work the brakes work the blinkers work everything but the inside lights. thank you
asked by: Richie
Expert Reply:
Sounds like the issue is the 12 volt power circuit of your 2009 GMC Sierra's 7-way. Check the pin in the 1:00 position for voltage with a circuit tester like part # PTW2993. If could be as simple as a dirty or bent connector that's just not making contact. Or it could be a blow fuse under the truck's hood.
If the circuit is functional on the 7-way most likely it's related to wiring on this circuit between the connector on the trailer and light fixtures of your trailer.
I attached a couple wiring help articles for you to check out as well.
Products Referenced in This Question
Product Page this Question was Asked From
Twist-in, 7-Pole, RV-Style Trailer Connector for Chevy and GMC Vehicles - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- Pollak
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