Troubleshooting Lights on 2017 Jayco Travel Trailer
Question:
I have a Jayco Jay flight 2017 travel trailer The running lights are not working and the brake lights only light dimly when the break is pressed Both blinkers work but if one blinker is on and brakes are pressed both rear lights blink. Also the trailer brakes do not connect to the truck I have connected my truck to other trailers and it connects easily Any help on how to fix these things would be greatly appreciated.
asked by: Danielle N
Expert Reply:
You are going to have to troubleshoot a bit, but this sounds like a classic case of a poor ground, which causes all sorts of funky issues. First though, there's some other things to check out; use a circuit tester such as # PTW2993 to test the connector on your tow vehicle after disconnecting it from your trailer. Check the wiring going into your harness from your taillights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and if they are correct then your issue is likely going to be with the trailer side wiring.
As I mentioned above, an important issue you will want to take a look at are the ground connections, as they can be the cause of numerous lighting problems. You'll want to make sure your grounds are securely attached to bare metal surfaces free of any paint, dirt or corrosion of any kind. Also check your wiring thoroughly to ensure there are none that are crimped, broken or otherwise damaged. I've added links to a pair of help articles on trailer wiring that you may also find useful.
Products Referenced in This Question
Product Page this Question was Asked From
Adapter 7-Pole to 4-Pole and 5-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 7 Round - Blade
- Plug Only
- 4 Flat
- 5 Flat
- Hopkins
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