Fuse Keeps Blowing on 2017 Ram and Running Lights on Trailer Do Not Work Properly
Question:
I have a 2017 Dodge dually with a fifth wheel. When I hook to a bumper pull trailer or a fifth wheel. All I get is turn signals and brake lights no running lights. Replaced fuse. Which had blown and got very dim running lights on bumper pull. Hooked to fifth wheel and had nothing. Going to replace fuse a start tracing it
asked by: Mike G
Expert Reply:
It sounds like you have a short somewhere on your circuits. You can start by inspecting the 7-Way connector on your 2017 Ram and your trailers to make sure that they are clean and do not have any debris in them.
If those look good then the next step would be to inspect all of your grounds and make sure that they have a solid connection to a clean, bare metal surface. Even some paint could cause a bad ground which results in a short.
Since this problem is happening with both trailers my guess would be that the problem is on your vehicle side. You can verify this by using the battery of your Ram to test your lights on your trailers. Ground the negative terminal and then use the positive terminal to test all of the light functions on your trailers. If they light up like they should then you know the problem is no your truck.
If you can verify that the problem is on your truck and you are still having problems after checking the grounds you will want to check your wiring next. Check for any places where it is damaged, exposed, bent, or corroded and replace with 16 Gauge Wire # 16-1-1 and Butt Connectors # DW05744-5. You can use this same guideline if the problem happens to be on your trailer side as well.
Once you have completed these troubleshooting steps, if you are still having issues it would be best to take your whole towing setup to a shop so that they can physically inspect it.
Products Referenced in This Question
Deka Heat Shrink Butt Connector - 16-14 Gauge - Nylon Insulation - Blue - Qty 5
- Wiring
- Wire Connectors
- Butt Connectors
- 16-14 Gauge
- Deka
more information >
Product Page this Question was Asked From
Continue Researching
- Q&A: Trailer Running Lights Keep Blowing Fuses when Turned On
- Video: Performance Tool LCD Digital Circuit Tester Review
- Video: Review of Optronics Wiring - Wiring Adapters - A57WB
- Video: Curt 7-Way to 4-Way/5-Way Trailer Adapter Review
- Video: Optronics 7 Pole to 5 Pole Flat Wired Adapter Review
- Q&A: Running Light Fuse Keeps Blowing Even with Trailer Running Lights Disconnected
- Q&A: No Running Lights on Trailer Attached to a 2013 Dodge Ram Pickup
- Q&A: Where is the Running Light Fuse for Trailer on 2013 Ram 1500
- Q&A: Which Pin On A 7-Way Should Have Constant 12V Power When Vehicle Is Running
- Video: Blazer 7 Function Trailer Tail Light Installation
- Shop: Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - White Base - Red Lens
- Shop: LCD Digital Circuit Tester
- Shop: Curt Replacement OEM USCAR Trailer Connector - Dual Connection - 7-Way RV Style and 4-Way Flat
- Shop: 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs
- Shop: Wesbar Adapter - 7-Way RV to 4-Way or 5-Way Flat - 18" Long
- Shop: Adapter 7 Pole to 5 Pole Flat Wired Adapter
- Q&A: Do Bulldog Powered Jacks have Inline Fuses
- Q&A: What Weight Capacity of Tongue Jack is Needed for a 4,600 Pound Dry Weight Trailer
- Video: Review of Optronics Trailer Lights - Clearance Lights - MCL75RB
- Shop: Optronics ThinLine LED Trailer Clearance and Side Marker Light - Submersible - 4 Diodes - Amber Lens
- Search Results: boat trailer wire harness
- Video: Choosing the Right Trailer Wiring
- Shop: Trailer Wiring
- Search Results: 44649
- Article: Trailer Wiring Diagrams
- Search Results: 68149
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Brake Controller
- Search Results: 25580