Troubleshooting No Running Lights on Camper
Question:
we have a 7 to 7 adapter.. We have electric brake works fine turn signals and brakes lights on camper but no running lights on the camper but park lights on the truck. What is wrong?
asked by: Ricky P
Expert Reply:
The first thing you are going to want to do is use a circuit tester like # PTW2993 if needed and test the connector on your truck to make sure all of the functions are working. If they are not use the owner's manual and/or the legend on the power distribution box lid to find the locations of any fuses or relays related to the tow package wiring and replace any that are faulty.
Next test the adapter. This will tell you if there is a problem in the connector. If the problem is on the trailer, then a short on the running circuit is likely the problem.
A ground issue would typically only affect one or two lights, not all of the running lights on the trailer. But it is possible that it is a ground issue. The main trailer connector grounds and the grounds for each of the lights need to be attached to clean and corrosion free bare metal surfaces. On the 7-Way connector, check to make sure there is no corrosion built up where the wires attach.
If either trailer frame is aluminum or has a tilt bed or tongue then you will need to run jumper grounds from the lights to the main trailer connector ground.
Since you are using a 7-Way to 7-Way adapter you can also check to make sure the adapter is working properly by plugging it into the vehicle and using a circuit tester to test the 7-Way pins.
Products Referenced in This Question
Product Page this Question was Asked From
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 4 Flat
- Draw-Tite
more information >
Continue Researching
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Shop: Furrion Vision S Wireless RV Backup Camera System w/ Night Vision - Rear Mount - 5" Screen
- Shop: RV Camera
- Shop: B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K
- Shop: Fifth Wheel Hitch
- Shop: B&W 5th Wheel Lifting Device for Companion and Patriot Hitches
- Shop: Buyers Products RV Backup Camera System w/ Night Vision - License Plate Mount - 7" Screen
- Q&A: Recommended Sliding 5th Wheel Hitch for 2020 Chevy Silverado 2500 with Factory Pucks
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Shop: Loadstar ST175/80D13 Bias Trailer Tire - Load Range D
- Shop: Karrier ST175/80R13 Radial Trailer Tire - Load Range D
- Shop: Performance Chip Tuners
- Search Results: brake harness
- Shop: Hook Probe Circuit Tester
- Q&A: How to Troubleshoot Travel Trailer Running Lights Not working
- Q&A: Troubleshooting No Running Lights on Trailer but Turn Signals and Brake Lights Work
- Shop: Towing Mirrors
- Q&A: Wiring Functions for 6-Way Square Connector on a 1990 Coleman Pop-Up Camper
- Video: Review of Rear View Safety Replacement High Gain Male Wireless Antenna Backup Camera - RVS-WT03
- Q&A: How Does the Pollak 7-Way Vehicle End Connector Come Apart
- Search Results: rv jack
- Q&A: Fuse Location for 12-Volt Accessory Feed to 7-Way Trailer Connector on 2005 Chevy Silverado
- Search Results: bumper mount hitch
- Shop: Trailer Hitch
- Video: Performance Tool Hook Probe Circuit Tester Review
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: shower door handle
- Shop: Camper Tie-Downs
- Article: How Much Solar Power Do I Need For My RV?