Troubleshooting Brake Light and Turn Signal Not Working on Jayco Trailer Using Adapter # 30104
Question:
I have a 1995 Jayco pop-up trailer and only the left looking from the rear brake/ turn signal is working. No running lights or any other lights are working. What could be the problem?
asked by: Bryan F
Expert Reply:
On a 6-Way square trailer connector like those found on Jayco trailers you will need to use a circuit tester like # PTW2993 to test the signal coming out from the adapter. If it does not match how the trailer is wired, you will need to re-wire one of the connectors to match.
If everything does match up, it is most likely a bad ground. Check the ground on the vehicle side 4-Way to make sure it is attached to a clean and corrosion free bare metal surface. Make sure both the trailer side and vehicle side connectors are free of corrosion and dirt. Then, check the ground from the trailer side connector. Finally, check the grounds at the offending lights. Trailer lights often ground through the mounting studs.
Products Referenced in This Question
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: LED Trailer Tail Light with Reflector - Stop, Turn, Tail - Submersible - Red Lens
- Q&A: Troubleshooting Right Side Turn Signal Not Working On Trailer
- Q&A: How To Remove Trailer Taillight that is Recessed Mounted in a Grommet
- Q&A: How to Troubleshoot Travel Trailer Running Lights Not working
- Shop: Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens
- Shop: 1156 Incandescent Light Bulb - Single Contact Bayonet - 26.9 Watt - Soft White - Qty 2
- Shop: Vehicle Lights
- Search Results: 1156 light bulb
- Search Results: bargman replacement bulb
- Q&A: Replacement Tail Lights for Older Jayco Eagle Pop-Up Camper
- Shop: Grease Seals 10-36 (pair)
- Search Results: 44649
- Video: Choosing the Right Trailer Wiring
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: Wiring a Camper Shell Third Brake Light on a 2017 Chevrolet Silverado
- Video: Choosing the Right Brake Controller
- Shop: Trailer Wiring
- Shop: Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Red Lens
- Search Results: 68149
- Q&A: 10k Dexter Replacement Hub for a 8-415
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: 25580
- Shop: Fifth Wheel Hitch
- Q&A: Replacement LED Top Command Clearance Light With SAE-AP2-16 On Lens For 2018 Sunseeker Motorhome
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Dust Cap for Kodiak Disc Brake Kit
- Search Results: dust caps
- Shop: Global Link RV Entry Door Locking Latch Kit with Keyed Alike Option - Black
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
on Trailer Wiring
